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- Casio FX CG50 Color Graphing Calculator
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- Texas Instruments TI-84 Plus Graphing Calculator
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- CASIO PRIZM FX-CG50 Color Graphing Calculator
Best Black Friday Graphing Calculators Deals 2023
Black Friday Graphing Calculators Deals 2023
The TI-84 Plus is the first which comes to mind when we think about calculators. And the credibility is well-earned, with a 4.5-star rating from nearly 4,000 reviews on Amazon. It comes preloaded with more than 10 advanced programs, benefits from free tutorials and webinars and has been accepted for use in exams such as SAT and ACT.
If a color screen is a major bullet point for you, then the FX-CG50 is a decent option. It is fairly priced, allows you to import images from your PC, Laptop and Mac, supports 3D graphing, and the display’s clarity is a good step up from the low-end options.
Texas Instruments obviously also has excellent color choices. For example, the TI-84 Plus CE takes the standard model ‘s features and adds more support for memory and image. This is a little more expensive than the standard edition, but the colors will make a huge difference when it comes to visualizing complicated issues.
The Casio FX-CG10 PRIZM offers a good 3.7-inch full-color screen with all the core features you ‘d expect. Quickly execute complex calculations, explain concepts with images and enjoy universal acceptance in test situations.
The Nspire CX CAS is a top-notch product to move up. It’s small , light, and even features a detailed notation keyboard as you comprehend a new idea. With the 3.2-inch panel, several visual izations can be easily seen at the same time. And because you can crunch massive datasets and build diagrams directly on the computer itself, this calculator will save you time.
If you need a handy tool to assist you with complex mathematical equations and problems, only the best graphing calculators will do. These graphic calculators are the most accurate out there if you need help with trigonometry, algebra, and statistics or just a mini-portable for engineering problems.
The only thing is, choosing the right graphing device for your particular needs can be a challenging job for students and science professionals. Unfortunately, most manufacturers of graphing calculators don’t advertise exactly what their products can and can not do, so it’s easy to pick up something and find a vital feature that is missing. And, spending $100/£80 on a graphing calculator that doesn’t make as useful as setting your money on fire as you need it to do.
Luckily for you, we ‘re here to help you find the right graphing calculator for you, from actual physical ones to their mobile software versions. Although we have not formally tested all of these, several of us have already done it via college-level trigonometry and calculus using them, and if it’s good enough to bring us through integration-by-part, they ‘re good enough to handle just about anything else you might throw at it that doesn’t need a postgraduate degree to test.
So here is our list of Best Graphing Calculators Black Friday Deals. Overall, you can say that a lot of benefits come with Graphing Calculators.
Hope this list of the best Graphing Calculators will be helpful for you. Feel free to contact us if you have any questions about our site or our reviews, and we will be happy to help you with your purchasing decisions in any way we can.
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The hyperbolic arc-sine is the inverse of the hyperbolic sine function. Calcute implements it with the asinh function. The inverse hyperbolic sine of a value x is the value y for which the hyperbolic sine of y is x. In other words if y = asinh(x) then x = sinh(y).
In some mathematical texts and hand-held calculators, the notation sinh-1 is sometimes used to represent the hyperbolic arc-sine function. This is an unfortunate notational choice since it could also stand for the multiplicative inverse 1/sinh, which is a different function.
This function is sometimes called the "area hyperbolic sine". Another abbreviation sometimes used to represent it is "arcsinh".


Kandinsky began a thoughtful study of the circle as an artistic block, beginning with this picture. 3, November 1971 RANDOM PACKING OF CIRCLES IN A PLANE 605 Fro. The shape does not stack as well as the more standard rectangle and creates a much different overall feel. The concept of angles is very important in the study of geometry, especially in circles. Journal of Colloid and Interface ~cience, Vol. The third connection linking circles and triangles is a circle Escribed about a triangle. Angles in a Circle – Explanation & Examples. From Wikimedia Commons, the free media repository. The perfectly round shape – and its oblong counterparts – can be difficult to work with. Given two integers r1 and r2, representing the radius of two circles, the task is to find the radius of the circle having area equal to the sum of the area of the two circles having given radii.. Circles annonce la sortie de CLEO, une solution innovante pour faire gagner du temps à ses clients.Cette offre novatrice et exclusive est constituée d’un casier connecté et sécurisé permettant au consommateur de déposer et de récupérer du pressing, de la cordonnerie et des retouches à tout moment. One of the things you need to keep in mind when making a circle is that the bigger your circle is, the closer it will resemble an actual circle. Kandinsky brought his circles into the foreground for the first time in this artwork from 1923, which was titled Circles in a Circle. Do I have to go around the circle to make a left turn, or can I just turn left in front of the circle? Find your thing. The magick circle is a mobile temple, a place apart from the ordinary world where magickal happenings can more easily occur. The number of friends in your inner circle should be small, typically less than 5 people. It is a particularly tidy piece with most elements contained neatly within a large thick circle. I tried the draw circle/ circle to 2 tangents. In this first of a series of posts, we’ll use built-in Visio functionality to arrange small circles around the perimeter of a larger circle, at equal intervals. It is a particularly tidy piece with most elements contained neatly within a large thick circle. 2. Definition of go in circles in the Idioms Dictionary. A circle circumscribing a triangle passes through the vertices of the triangle while a circle inscribed in a triangle is tangent to the three sides of the triangle. Edit the circle in your document. $ python detect_circles.py --image images/soda.png Figure 2: Detecting the top of a soda can using circle detection with OpenCV. Right now, we need community more than ever. Many Circles alternate between meetings focused on creating personal connections and meetings focused on learning new skills. Definitions by the largest Idiom Dictionary. A volunteer-powered platform calls for some ground rules. “Circles in a circle” is a compact closed composition. Circles in a Circle demonstrates Kandinsky's distinctive style from the early 1920s, when he began teaching at the Bauhaus in Weimar, Germany, and subsequently moved away from a spontaneous painting style to a geometric composition. Start a Circle. Circle-casting is a term that’s most commonly used in Wiccan traditions, but other magick users may cast circles, as well. Jump to navigation Jump to search. Kandinsky brought his circles into the foreground for the first time in this artwork from 1923, which was titled Circles in a Circle. Circle tangent to three tangent circles (without the Soddy/Descartes formula) 1 Circles inscribed in a rectangle are tangent at distinct points; find the radius of the smaller circle … TED Circles is an open community which welcomes everyone who believes in TED's values and wishes to engage in constructive conversations about ideas. Not very much is known for n > 20; our intention in this study is to explore these cases. The peripheral circles are all those circles which can be connected with a point outside of the aggre- gate by a line which does not cut or touch a circle of the aggregate. Circles in Circle 1. a small/narrow circle Ken was the centre of a small circle of artists and writers. File; File history; File usage on Commons; File usage on other wikis; Metadata; Size of this preview: 584 × 600 pixels. a wide/large circle They now had a wide circle of acquaintances in the area. Trouvez les Crop Circle images et les photos d’actualités parfaites sur Getty Images. At the top right, click More Delete circle. You’ll find eye-catchers like: kandinsky clothes, kandinsky t shirts, kandinsky k… • Millions of unique designs by independent artists. If you are using WPF, or something similarly advanced, you can just create a circle object and add it to a canvas in step 1, and then manipulate its properties in step 2. On the most simplistic level we see circles in nature all around us. Conjecturally optimal packings of 18 circles in a circle. Vassily Kandinsky 1923 – Circles in a Circle . You have seen a few theorems related to circles previously, that all involve angles in it.. Now this article is purely related to angles of a circle. In this problem we have one large circle, followed by seven circles placed inside the large one. In this work, a thick black circle surrounds twenty-six overlapping circles of varying sizes and colors, many of them intersected by straight black lines. You can use the Select tool to create a circular border from the Ellipse Select function. You can draw the three circles yourself and fill in the names, or use the Circles of Friendship journal page on our website: Your Inner Circle; These are the people who are very close to you, who understand you, people who you trust to always be there for you when you need them. Examples: Input: r1 = 8 r2 = 6 Output: 10 Explanation: Area of circle with radius 8 = 201.061929 Area of a circle with radius 6 = 113.097335 An example is shown in Fig. Why join a Circle? But that is not all, we can delve much deeper. circle simple curve of Euclidean geometry. Wikipedia article lists first 20 solutions (in other words, it lists smallest possible radius of larger circle which is enough to pack specified number of unit circles (circles with radius of one). You can search for an existing Chapter to join or other Circles in your area to connect with at the Circles Matching page. You can pull, pinch, and drag the dots around the shape to edit its appearance. Choisissez parmi des contenus premium Crop Circle de la plus haute qualité. Under "Your circles," click the circle you want to delete. The outer black circle, as if the second frame for the picture, encourages us to focus on the interaction of inner circles and two intersecting diagonal bands to enhance the effect, adding perspective to the composition. File:Vassily Kandinsky, 1923 - Circles in a Circle.jpg. The case of 6 circles is analogous to that of 18 circles; different packings can be obtained from the 7-circle packing by removing and reordering circles. Store the newly created circle in the circle collection, and render it to the screen. This painting from 1923 can now be found under the ownership of the Philadelphia Museum of Art. Find Kandinsky inspired abstract art merch, by Gascondi, in fashion and home decor. Generally speaking, the circle is put up at the beginning of the rite by the leading priest and/or priestess. Circles in Nature. Now, let’s try the 8 circle problem. Best known packings for circles in a circle for 2 to 100 circles. Kandinsky was one of the first artists to explore nonrepresentational art. People in the circles you're following are still included among your extended circles.
circles in a circle 2021


A set of integrated mathematical models for predicting microstructure evolution during hot rolling has been developed through laboratory research work. It consists of several models which include static and dynamic recrystallization mechanisms. Generally, dynamic recrystallization falls under the continuous hot rolling process. The model has been applied to compute the changes in grain at individual passes during hot rolling. The initial grain size with different heating temperatures and dwell times was computed using constitutive equation, and grain size at the individual passes was calculated using different pass schedules at individual passes. The model has been validated by comparing predicted austenite grain size with measurements made on quenched samples taken from end-cut shears. Different grades and sizes have been validated in this model. The predicted results agree well with measured values in samples.
2023/12 AIST Iron & Steel Technology December


I love the start of a new school year. We have had enough time off over the summer to really look forward to our busy school days! Don’t get me wrong. We had a very busy summer, but the schedule was just so different from our school year schedule that we feel refreshed and ready to begin again. After four years of homeschooling, I’m finally starting to get the hang of this!
Schedules, Schedules and More Schedules!
Like last year, we will follow this schedule as closely as possible for about six weeks. Then, we will take one week off of regular school work while I pre-read, plan and change the schedule as needed. Last year we followed a six weeks on/one week off schedule, and it worked brilliantly! None of us burned out (including and especially me), and we completed our planned lessons. So, we will definitely be doing that again! Here is a link to my plan for the academic year: 2017-2018 Academic Year Calendar.
Because I am following a Charlotte Mason approach to homeschooling, we have many varied subjects throughout the day which I have carefully planned so that we are alternating between different kinds of activities. It looks like a lot, but this entire schedule is completed between the hours of 10am and 3pm every day, including lunch and time outdoors!
I am making a big leap and changing to a new math curriculum. We have used MEP from the beginning, and there is so much that I love about that curriculum. However, its “spiral approach” to teaching concepts just doesn’t give either of my kids enough of an anchor to master a skill and move forward. Both of my kids are ready to start second grade math. They are not “at grade level” for many, many reasons, and I love homeschooling because I can adapt our work to the right level for them!
For review and “math drills”, I switched to Math Mammoth. I bought the first grade workbooks, and the kids will work on these books independently for up to 20 minutes per day.
For new teaching, I am working through the second grade work in Frank Hall’s An Arithmetic Primer. This is a really fascinating curriculum! The activities are not done as worksheets but as hands-on and verbal math. It works like this:
- Day 1 – Facts to memorize. In the beginning, these are basically number bonds, which we will learn with hands-on activities and games like Denise Gaskins recommends on her Let’s Play Math blog.
- Day 2 – Linear measurement. The same facts from day one are introduced in the form of linear measurements. We will use an actual ruler and measure lines (horizontally and vertically), bisect them (find half), etc.
- Day 3 – Spatial measurement. We will measure area and volume by building with cubes, measuring liquids in measuring cups, etc.
- Day 4 – Apply the facts from the previous three days to addition, subtraction, multiplication, division and fraction problems.
I started using this program at the end of the last school year, and I saw the light bulbs coming on for both of my kids. I loved that more advanced math topics are introduced right away using numbers with small magnitude (i.e. 1-4). It is very clever!
This is the only real change that I’ve made. Otherwise, I really love how last year went, and I’m looking forward to this one!
Best wishes on a new school year!


Published on eHow 6/9/13
You may wonder if research shows whether students are able to develop and reinforce their math skills through math games. These games, both traditional classroom as well as video, have become a common part of the way math is taught in elementary through high school classes. Research shows that math skills can be improved through the investment of time and energy that is involved in these games.
Read more: http://www.ehow.com/info_12281841_research-showing-math-games-can-improve-students-math-skills.html#ixzz2Z5vMXos0


CMA Conference 2022
AboutAfter two years of remote and on-line events, we are proud to present our annual conference as a face-to-face, in-person celebration of mathematics education in the ACT. Come along and reconnect with your community of professional colleagues and expand your network with new connections and new friends.
Our exciting line up of presenters will challenge and provoke you to new understandings of how to enhance the teaching and learning of mathematics. We look forward to meeting you all.
DateSaturday 13 August 2022 9:00 AM - 5:00 PM (UTC+10)
Northcott Dr, Campbell ACT 2612


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Who’s doing the math?
I’m watching CNN. With Wolf Blitzer. I must secretly hate myself.
Anyway, I digress. About every 87 seconds, Wolf Blitzer says, “We’re doing the math for you!” If I had a nickel for every time he said that tonight, I’d have about $372.15. I’m doing the math for myself on that one.
Does anyone know of a teevee network that is not broadcasting for toddlers?


Linking core subjects - Science and maths
This event will take place between 9:00am and 4:00pm on 12/03/2020.
Linking core subjects- Science and Maths
Explore how key skills in both science & maths can be used to enable pupils to further enhance their skills & understanding of science key concepts & ideas.
Throughout this course, you will identify how to maximise your pupils opportunities to develop their numeracy skills and improve attainment in science by planning lessons in which children effectively implement emerging ideas & concepts.
- Develop an understanding of the key skills which will enable children to move forward in both their science & mathematical learning.
- Be able to plan progressively to enable pupils to use key skills in both maths & science
Date – 12th March Time – 9am -4pm Venue – Launde Primary School


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By Fettah Akhiat, Charles Castaing, Fatima Ezzaki (auth.), Shigeo Kusuoka, Toru Maruyama (eds.)
Advances in Mathematical Economics is a book of the learn middle for Mathematical Economics, which used to be based in 1997 as a world medical organization that goals to advertise learn actions in mathematical economics.
Our ebook used to be introduced to achieve our long term objective of bringing jointly these mathematicians who're heavily attracted to acquiring new hard stimuli from monetary theories and people economists who're looking potent mathematical instruments for his or her research.
The scope of Advances in Mathematical Economics contains, yet isn't restricted to, the next fields: - fiscal theories in a number of fields in keeping with rigorous mathematical reasoning; - mathematical tools (e.g., research, algebra, geometry, chance) influenced by way of financial theories; - mathematical result of strength relevance to monetary idea; - historic examine of mathematical economics.
Authors are requested to strengthen their unique effects as totally as attainable and in addition to offer a uncomplicated expository assessment of the matter lower than dialogue. accordingly, we'll additionally invite articles that can be thought of too lengthy for book in journals.
Read or Download Advances in Mathematical Economics PDF
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The monetary Markets of the longer term is anxious with e-business because it applies to monetary associations who function inside those markets. It offers a strategic review of the effect and implications of know-how in those markets. The version identifies fundamental inter-related technological explanations of switch and the attractiveness and straightforwardness of the version and structure supply a method to judge advancements within the monetary markets.
This booklet was once written to inspire a choice for entire exertions industry reforms—part of the incomplete schedule that's also known as the ''second iteration of reforms. '' those reforms are tricky: employees fear that their jobs should be placed into jeopardy and, particularly in economies the place defense nets are insufficient, those matters are actual.
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El libro cubre l. a. historia del movimiento sindical colombiano en los últimos 164 años. Incluye el análisis de las épocas de apoyo estatal al movimiento sindical y también de aquellas en que el Estado persiguió las luchas obreras y l. a. acción huelguística. l. a. intervención estatal siempre ha estado presente en el movimiento sindical y el trabajo trata de dilucidar cómo los cambios en l. a. legislación laboral han influido en l. a. estructura del movimiento sindical, su poder negociador, y su impacto sobre el desarrollo económico nacional y el bienestar de los trabajadores.
Finalmente, el libro se ocupa del tamaño del movimiento a través del tiempo, definido como los angeles relación entre personas sindicalizadas y con relación a l. a. fuerza de trabajo. Se discuten las posibles causas de l. a. caída en los angeles densidad sindical, así definida en las primeras décadas del siglo XXI, y por qué el apoyo de l. a. sociedad al movimiento sindical es una necesidad para el logro de mayor crecimiento económico, bienestar, justicia y equidad en Colombia.
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Extra resources for Advances in Mathematical Economics
0; 1/ for t 2 S 2 is a competitive equilibrium as well as a quasi-equilibrium that is unique. In the above example, Assumption 6 is satisfied. S 0 / > 0. 8 S m is the non-null coalition defined in Assumption 6 for each m D 1; 2; : : : ; n. 44 J. -I. Takekuma From now on, in order to obtain a core equivalence theorem for economies which satisfy Assumptions 1, 2, 3, 4, 6 and 7, we show the following lemmas. Lemma 1. p ; f /, p with p ¤ 0. 0 Proof. Suppose that pm < 0 for some m. e. t/g. e. t 2 T .
By Lemma 2, the price vector associated with any quasi-equilibrium is strictly positive. Let f W T ! RnC be a core allocation. Then, there exists p 0 such that (p; f ) is a quasi-equilibrium. Note that inffp x j x 2 RnC g D 0. t/ > inffp x j x 2 RnC g. t/ D 0. t/ is not maximal with respect to t in t’s budget set. t/, since t’s budget set contains only the origin 0 of RnC . If the set S of traders t for whom this happens has positive measure, then S can improve upon f via e, contradicting that f is a core allocation.
T 2 T , for any x 2 RnC and any " > 0, there exists a point y 2 RnC with ky xk Ä " such that y t x. Assumption 3. e. t 2 T , for any x 2 RnC , the upper contour set fy 2 RnC j y t xg is open in RnC . , which are usually assumed in the existence theorems of competitive equilibria. In his paper, Aumann  assumed the following condition of monotonicity of preferences and proved the core equivalence theorem. e. t 2 T , if y 2 x and y ¤ x then y The notion of quasi-equilibrium was first defined by Debreu .
Advances in Mathematical Economics by Fettah Akhiat, Charles Castaing, Fatima Ezzaki (auth.), Shigeo Kusuoka, Toru Maruyama (eds.)


Top 10 Indian Mathematicians and their Contributions are: –
Aryabhata, the first of the major mathematicians from Pataliputra now know as Patna in Bihar in India, worked on the place value system using letters to signify numbers and stating qualities. He, author of several treatises on mathematics and astronomy, discovered the position of nine planets and stated that these planets revolve around the sun. He also stated the correct number of days in a year that is 365.
Brahmagupta, author of two early works on mathematics and astronomy, was often regarded as the greatest scientist of his race. His most significant contribution was the introduction of zero (0) to the mathematics which stood for “nothing” which stood as the basis of decimal number system besides various algebraic, geometry and arithmetic theory.
Srinivasa Iyengar Ramanujan, an Indian mathematician and autodidact who lived during British rule, is one of the celebrated Indian mathematicians. His important
contributions to the field include Hardy-Ramanujan-Littlewood circle method in number theory, Roger-Ramanujan’s identities in partition of numbers, work on algebra of
inequalities, elliptic functions, continued fractions, partial sums, products of hypergeometric series besides various other mathematical analysis, number theory and infinite series. His birth day, 22nd December, is celebrated as State IT Day in Tamil Nadu and National Mathematics Day in India.
Prasanta Chandra Mahalanobis, an Indian scientist and applied statistician best remembered for the Mahalanobis distance, a statistical measure, is the founder of Indian Statistical Institute as well as the National Sample Surveys for which he gained international recognition and was one of the members of the first planning commission of free India. He made pioneering contribution in anthropometry. His birthday on 29th June is celebrated as National Statistical Day.
Calyampudi Radhakrishna Rao, an Indian born American mathematician and statistician, known as C R Rao is famous for his “theory of estimation. He is regarded as a living legend whose work is not only limited to statistics but in the field of economics, genetics, anthropology, geology, national planning, demography, biometry, and medicine as well. He was the main force in establishing The Asian Statistical Institute now known as Statistical Institute for Asia and Pacific. His best know contributions are the Cramer – Rao bound and the Rao – Blackwell theorem besides others like Fisher – Rao Theorem, Rao distance, Rao measure and orthogonal arrays.
Dattathreya Ramchandra Kaprekar, Indian recreational mathematician, known as “Ganitanand”, discovered several results in number theory, described various properties of numbers including a class of numbers and a constant named after him like the Kaprekar, Harshad and Self numbers or Devlali numbers, Demlo numbers and discovered the Kaprekar constants. He also constructed certain types of magic squares related to the Copernicus magic square.
Harish Chandra, Indian American Mathematician and physicist, is famously known for infinite dimensional group representation theory especially harmonic analysis on
semisimple Lie groups.
Bhāskara II, titled ‘II’ to differentiate him from another legend bearing same name, was one of the greatest mathematicians the world has ever seen and astronomer who
defined the dimensions of zero and infinity and authored Siddhanta Siromani and Karan Kautuhala. His genius in calculus predates Newton and Leibniz by over half a
millennium and is known for the discovery of the principles of differential calculus and its application to astronomical problems and computations. Using an astronomical model developed by Brahmagupta in the 7th century, Bhaskara accurately defined many astronomical quantities.
Bhāskara I, titled ‘I’ to differentiate him from another legend bearing same name, known for Bhashara I’s sine approximation formula, was a 7th-century mathematician, who was the first to write numbers in the Hindu decimal system with a circle for the zero and also wrote two astronomical works the Mahābhāskarīya and the Laghubhāskarīya. His most important mathematical contribution concerns the representation of numbers in a positional system.
Narendra Krishna Karmarkar, an Indian mathematician, was well known researcher popular for the Karmarkar’s algorithm. He invented a polynomial algorithm for linear
programming also known as the interior point method.


SUMMER WARS (MamoruHosoda, 2009)
Timid eleventh grader and math genius Kenji Koiso is asked by his secret crush Natsuki to come with her to her family's Nagano home for a summer job. Turns out, Kenji discovers, his "summer job" is to pretend to be Natsuki's fiancé for the celebration of her spunky grandmother's 90th birthday. While there, he receives a strange math problem on his cell phone, and, being a math genius, he can't resist solving it. However, his solution creates chaos within the virtual world of OZ, translating into anarchy in real life.


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1 edition of Soaring Scores on the MEAP Math Test found in the catalog.
Soaring Scores on the MEAP Math Test
Written in English
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Oct 28, · DPS math, reading scores still bottom in national test. Detroit students showed some improvement in math, but the district is still ranked lowest among 21 big cities. Jun 06, · Five students took a math test before and after tutoring. Their scores were as follows. A C D E Befor 77 66 72 - Answered by a verified Math Tutor or Teacher.
Oct 28, · Math test scores down for the first time in 25 years. U.S. schools could rely on one small truth: Math scores on the National Assessment of Educational Progress. Scarlett Middle School school profile, performance trends and MI state ranking. See how Scarlett Middle School ranks with other Ann Arbor schools. Scarlett Middle School profile, including MI ranking, test scores, and stcroixcaribbeanweddings.comct: Ann Arbor Public Schools.
The Mathematics Section of the THEA Practice Test consists of 48 multiple-choice questions. Read each question carefully and choose the ONE best answer. Appropriate definitions and formulas are provided below to help you perform the calculations on the test. Sep 06, · Compass Math Test Success: Compass Math Problems & Solutions [Academic Success Media] on stcroixcaribbeanweddings.com *FREE* shipping on qualifying offers. Would you like a new version of this book that contains more than twice as much material? For the updated and expanded edition of this book please search Amazon for ACT Compass Math Test Success: Advantage+ Edition by /5(14).
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These standards, developed for educators by educators, broadly outline what students should know and be able to do in order to be prepared to enter the workplace, career education training, and college.
Dec 06, · The U.S. average score in math was out of 1, 20 points below the international average of and 12 points lower than the U.S. average inthe last time the test was given. Still, U.S. average scores surpassed those in 28 education systems and were similar to stcroixcaribbeanweddings.com: Theresa Harrington.
Apr 27, · Test Scores Show a Decline in Math Among High School Seniors. By Soaring Scores on the MEAP Math Test book Zernike. April 27, ; The average performance of the nation’s high school seniors dropped in math from to Author: Kate Zernike.
test questions, proctors should advise students to use their own best judgment. Proctors may give students assistance only in the mechanics of taking the test, such as understanding that their multiple-choice responses must only be recorded on the answer sheet and their constructed responses must be recorded in the test book.
Support Wisconsin Reading Readiness. MAP Reading Fluency is a ground-breaking new K-3 assessment that enables group administration and provides a more complete view of reading ability – all in just 20 minutes.
It also fits the Wisconsin criteria for. Start studying Research Methods week 2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. if a researcher administers a basic math test to middle school children to see if the basic math test scores predict grades in high school, algebra, what is the criterion variable?.
the norm (reference) group who took the test at a comparable time. • Range 1 – 99 • Average standing – 50 • Example score: 71 71% of the students in the same grade obtained scores equal to.
the test by practicing at home. The list of test-taking tips gives parents suggestions on ways to reduce test anxiety and promote good study and health habits in preparation for testing.
Students may wish to use the test independently to practice before the actual test. Jan 24, · New York 6th Grade Math Test Prep: Common Core Learning Standards [Teachers' Treasures] on stcroixcaribbeanweddings.com *FREE* shipping on qualifying offers.
Our 1st edition New York 6th Grade Math Test Prep for Common Core State Standards is an excellent resource to assess and manage student's understanding of concepts outlined in the Common Core State Standards Initiative.4/5(1). The Michigan Department of Education released scores from last fall’s Michigan Educational Assessment Program for all of the state STATE: MEAP scores show gains in math.
90% Homework Return Rate (students in co-taught math classes and study skills) What I learned: There was little difference in unit test scores between those students who turned in homework at a rate of 90% or better and those completed less than 50% of their homework.
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SMI test consists of age appropriate tests for K students. The test is adaptive. This means that the questions are at the student's level. The SMI test focuses on number ID, fact fluency and attending to math precision. SMI: Quantile Resources: stcroixcaribbeanweddings.com Review and master knowledge of problem solving, modeling, and algebraic structure for success on the math portion of the new SAT.
Preparing for the ACT: Mathematics & Science Reasoning Maximize scores and reach full potential on the mathematics and science reasoning sections of the ACT exam. Dec 03, · Scores in math, reading and science The test scores offer fresh evidence for those who argue that the United States is losing ground to global competitors and others who say a.
The Math Tests target student progress toward three of the four content standards as described in Section II of this report (Test Design and Development, subsection Content Rationale).
Oct 13, · Educators try to come to terms with low math scores on Smarter Balanced tests. College Readiness October 13, math instruction in some of the state’s largest districts said they are themselves trying to interpret the test results.“There is some disappointment because you look at how hard the kids worked and how hard we all worked Author: Louis Freedberg.May 07, · Nation's Report Card Shows Stagnant Scores For Reading, Math: The Two-Way The latest National Assessment of Educational Progress shows .CRCT Score Interpretation Guide Overview of Key Terms and Test-Related Concepts Number Correct and Percent Correct at the Domain Level For each content domain, the number of correct answers is reported in the Individual Student Report.
These scores should be used cautiously to determine a student’s relative.


View all headers Path: Fractal images, software, algorithms, definitions, and reference Keywords: The Usenet newsgroup sci.
The mathematical concept is difficult to define formally, even for mathematicians, but key features can be understood with little mathematical background. The feature of "self-similarity", for instance, is easily understood by analogy to zooming in with a lens or other device that zooms in on digital images to uncover finer, previously invisible, new structure.
If this is done on fractals, however, no new detail appears; nothing changes and the same pattern repeats over and over, or for some fractals, nearly the same pattern reappears over and over. The difference for fractals is that the pattern reproduced must be detailed.
Having a fractional or fractal dimension greater than its topological dimension, for instance, refers to how a fractal scales compared to how geometric shapes are usually perceived.
In contrast, consider the Koch snowflake. It is also 1-dimensional for the same reason as the ordinary line, but it has, in addition, a fractal dimension greater than 1 because of how its detail can be measured.
This also leads to understanding a third feature, that fractals as mathematical equations are "nowhere differentiable ". In a concrete sense, this means fractals cannot be measured in traditional ways.
But in measuring a wavy fractal curve such as the Koch snowflake, one would never find a small enough straight segment to conform to the curve, because the wavy pattern would always re-appear, albeit at a smaller size, essentially pulling a little more of the tape measure into the total length measured each time one attempted to fit it tighter and tighter to the curve.
Bytwo French mathematicians, Pierre Fatou and Gaston Juliathough working independently, arrived essentially simultaneously at results describing what are now seen as fractal behaviour associated with mapping complex numbers and iterative functions and leading to further ideas about attractors and repellors i.
In  Mandelbrot solidified hundreds of years of thought and mathematical development in coining the word "fractal" and illustrated his mathematical definition with striking computer-constructed visualizations. These images, such as of his canonical Mandelbrot setcaptured the popular imagination; many of them were based on recursion, leading to the popular meaning of the term "fractal".
Authors disagree on the exact definition of fractal, but most usually elaborate on the basic ideas of self-similarity and an unusual relationship with the space a fractal is embedded in. Koch snowflake Quasi self-similarity: A consequence of this structure is fractals may have emergent properties  related to the next criterion in this list.
Irregularity locally and globally that is not easily described in traditional Euclidean geometric language. For images of fractal patterns, this has been expressed by phrases such as "smoothly piling up surfaces" and "swirls upon swirls". A straight line, for instance, is self-similar but not fractal because it lacks detail, is easily described in Euclidean language, has the same Hausdorff dimension as topological dimensionand is fully defined without a need for recursion.
Because of the butterfly effecta small change in a single variable can have an unpredictable outcome. Iterated function systems IFS — use fixed geometric replacement rules; may be stochastic or deterministic;  e.
The 2d vector fields that are generated by one or two iterations of escape-time formulae also give rise to a fractal form when points or pixel data are passed through this field repeatedly.
A fractal generated by a finite subdivision rule for an alternating link Finite subdivision rules — use a recursive topological algorithm for refining tilings  and they are similar to the process of cell division.
A fractal flame Fractal patterns have been modeled extensively, albeit within a range of scales rather than infinitely, owing to the practical limits of physical time and space. Models may simulate theoretical fractals or natural phenomena with fractal features.
The outputs of the modelling process may be highly artistic renderings, outputs for investigation, or benchmarks for fractal analysis.
Some specific applications of fractals to technology are listed elsewhere. Images and other outputs of modelling are normally referred to as being "fractals" even if they do not have strictly fractal characteristics, such as when it is possible to zoom into a region of the fractal image that does not exhibit any fractal properties.
Also, these may include calculation or display artifacts which are not characteristics of true fractals. Modeled fractals may be sounds,  digital images, electrochemical patterns, circadian rhythms etc.
Fractal patterns have been reconstructed in physical 3-dimensional space : A limitation of modeling fractals is that resemblance of a fractal model to a natural phenomenon does not prove that the phenomenon being modeled is formed by a process similar to the modeling algorithms.The word "fractal" is originated from a basic paper of Benoit Mandelbrot.
22 It is used to illus- trate the geometry of objects that can be modeled by Euclidean geometry. "The Mandelbrot Set - Fractals Geometry - Energy, Psycology, TeleCom" “Photos Of Geometrical Plants For Symmetry Lovers ” "Here is the remarkable life story of Benoit Mandelbrot, the creator of fractal geometry, and his unparalleled contributions to science mathematics, the.".
A Short Overview of Fractals, a Geometrical Discovery by Benoit Mandelbrot ( words, 3 pages) A fractal is a geometrical or physical structure having an irregular or fragmented shape at all scales of measurement between a greatest and smallest scale such that certain mathematical or physical properties of the structure, as the perimeter of a.
Mandelbrot Set - most famous of all fractal images. Thank you Benoit Mandelbrot for you ingenious mathematics into fractals. Find this Pin and more on Fractals by Jean Rossouw.
Benoit Mandelbrot - Wikipedia, the free encyclopedia. Benoit Mandelbrot’s style is deliciously eccentric and idiosyncratic, and this finely produced volume, a lovingly reworked edition of “Fractals”, his masterpiece, is a fitting tribute to the fruits of a career of near-obsessive inquiry.
Arthur C. Clarke presents this unusual documentary on the mathematical discovery of the Mandelbrot Set (M-Set) in the visually spectacular world of fractal geometry. This show relates the science of the M-Set to nature in a way that seems to identify the hand of God in the design of the universe itself/10().


Assume you have a variable y, which has an expectation and a variance. The expectation is often modeled using linear regression so that E(y) equals, on average, . The origin of the variability in y is the residual. Now, standard econometric courses start with the simple notion of “constant variance”, which means that the variance of the disturbances is steady and is not related to any of the explanatory variables that were chosen to model the expectation, this is called homoskedasticity assumption. In fact, in real life it is rarely the case. Courses should start with the heteroskedasticity assumption as this is the prevalent state of the world. In almost any situation you will encounter, the variance of the dependent variable is not constant, it matters what is the x for which we want to determine the variance of y. So:
homoskedasticity assumption: The variance of y is unaffected by the value of x, and so is just a constant number throughout the sample.
heteroskedasticity assumption: The variance of y is affected by the value of x, and so is not a constant number, it changes with the values of x.
1. Your estimate for the vector are still unbiased so your point estimation for E(y) are still valid in that sense.
2. Your estimate for the vector are no longer the most efficient thing you can do. You can get more accurate estimate.
3. Your inference is troubled. Under heteroskedasticity, the confidence intervals are false as they were derived under homoskedasticity.
Testing for it
There are many ways, I give just a couple which are standard practice. I noticed many students learn how to perform the tests but have little idea why these tests work. After reading more than a couple of econometric text books I cannot really fault them as the explanations provided there are somewhat poor.
The two tests are related, the first is the Breusch–Pagan test (named after Trevor Breusch and Adrian Pagan). The second is White test. I read somewhere that white’s paper from 1980 is the most cited paper in economics, which points to the pervasive nature of the problem. We use the squared residual from the regression, denote it as an estimate for the variance. The reason is: V(residual) = E(residual^2) – E(residual)^2 = E(residual^2) – 0^2. So that is why is used to measure the variance of y. The idea is simple, we perform an extra regression called auxiliary regression:
and check if the regression is meaningful, that is, if one of the covariates is related to the variance of y. The statistic is distributed and is computed as (number of observations)*(R^2 of the auxiliary regression).
White test is only slightly different, we add the squares of the covariates and the cross product to check for a non-linear impact on the variance. The computation of the test statistic is the same.
We will use three variables, unemployment rate, Short rate and Industrial production. Data is public, you can just copy paste the code to load it.
dat = as.matrix(read.table(file = "https://dl.dropbox.com/u/9409065/UnemployementData.txt") ) par(mfrow = c(3,1)) plot(dat[,1], ty = "l", main = "Unemployment Rate", xlab = "Time (1960 - 2012, Monthly)", ylab = " ") plot(dat[,2], ty = "l", main = "Short Rate", xlab = "Time (1960 - 2012, Monthly)", ylab = " ") plot(dat[,3], ty = "l", main = "Industrial Production",xlab = "Time (1960 - 2012, Monthly)", ylab = " ")
Transform to stationary to avoid spurious regression,
lm0 = lm(UnemploymentRate~ShortRate+ShortRate+IP, data = ddat) ; summary(lm0) Call: lm(formula = UnemploymentRate ~ ShortRate + ShortRate + IP, data = ddat) Residuals: Min 1Q Median 3Q Max -0.5932 -0.0989 -0.0033 0.0997 0.7452 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.02179 0.00676 3.22 0.00134 ** ShortRate -0.05562 0.01482 -3.75 0.00019 *** IP -0.15014 0.01439 -10.44 < 2e-16 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 0.164 on 624 degrees of freedom Multiple R-squared: 0.189, Adjusted R-squared: 0.187 F-statistic: 72.8 on 2 and 624 DF, p-value: <2e-16
The Breusch–Pagan test – using a built-in function:
library(lmtest) bptest0 = bptest(lm0) ;bptest0 #studentized Breusch-Pagan test #data: lm0 #BP = 14.2, df = 2, p-value = 0.0008316
The Breusch–Pagan test – just so you know what you are doing:
alm = lm(lm0$res^2~IP+ShortRate, data = ddat) ; summary(alm) Call: lm(formula = lm0$res^2 ~ IP + ShortRate, data = ddat) Residuals: Min 1Q Median 3Q Max -0.0572 -0.0237 -0.0160 0.0079 0.5179 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.028474 0.001905 14.95 < 2e-16 *** IP -0.014879 0.004051 -3.67 0.00026 *** ShortRate -0.000803 0.004172 -0.19 0.84745 --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 0.0462 on 624 degrees of freedom Multiple R-squared: 0.0226, Adjusted R-squared: 0.0195 F-statistic: 7.22 on 2 and 624 DF, p-value: 0.000793 ## Calculate the test statistic: length(lm0$res)*summary(alm)$r.squared #14.2
We can see the variable that is related to the variance is Industrial Production, or is it?..
White test – no built in function that I know of.
Here we see that the IP-squared.residual relation is less obvious. The variance of the dependent variable has non-linear relation with the variable Industrial Production as you can see in the following table:
|I(IP * ShortRate)||0.0148||0.0100||1.48||0.1404|
How to deal with it?
Weighted Least Squares (WLS) is a reasonable solution. We scale the equations so that observations with less information in them (high residuals) get lower weights. How much lower? proportional to their variance (squared residual) or to their standard deviation. Theoretically, if we knew the exact true variances, then WLS is better. However, we have one observation as an estimate of the variance, the estimated residual of each observation, and that residual is often a poor estimate for the unknown true residual which depend on the true generating process. So apart from the fact that you have only one, it is more often than not inaccurate estimate since you probably have not considered the “right” explanatory variables or the equation itself is not even linear. For those reasons, WLS is not as popular in practice as you might expect from the theory.
In R, it is very easy to do using the argument “weights” as follows:
lm1 = lm(UnemploymentRate~ShortRate+ShortRate+IP, data = ddat, weights = 1/w) ; summary(lm1)
To leave you with something to think about, does the regression resulting from the WLS procedure is better fit or worse fit in terms of R^2? higher R^2 or lower R^2 than the original regression with equal weights for all observation? (worse fit, but why?)


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Fractal geometry: computer graphics representation of the Mandelbrot Set, plotted from complex number coordinates. A number is described as complex when it is made up of two parts, historically called real and imaginary. The Mandelbrot set, named after Benoit B. Mandelbrot, is a form of fractal geometry, the mathematical study of forms having a fractional dimension. Fractal patterns demonstrate order and presence of pattern in apparently highly irregular systems. For example, fractals have been applied to model coastlines
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EDITORS COMMENTS 1. Title: "Exploring the Intricacies of the Mandelbrot Set: A Journey into the Fractal Realm". This image showcases a computer graphics representation of the renowned Mandelbrot Set, a fascinating example of fractal geometry. Fractal geometry is a branch of mathematics that explores the presence of intricate patterns in seemingly irregular systems, often characterized by their fractional dimension. The Mandelbrot Set, named after the influential mathematician Benoit B. Mandelbrot, is a prime example of this mathematical concept. The Mandelbrot Set is a complex mathematical function, plotted from complex number coordinates. Complex numbers, a historical term, are made up of two parts: a real part and an imaginary part. In this image, the intricate, infinitely repeating patterns of the Mandelbrot Set are revealed through the use of computer graphics. Fractal patterns, such as the Mandelbrot Set, demonstrate the underlying order and complexity hidden within seemingly chaotic systems. These patterns have been applied to various fields, including mathematics, physics, and computer graphics, to model complex phenomena, such as coastlines and turbulence. The Mandelbrot Set's intricate, self-similar structures, which seem to go on infinitely, continue to fascinate mathematicians and artists alike. This image invites viewers to explore the depths of this mathematical marvel, revealing the beauty and complexity hidden within the fractal realm. As we delve deeper into the intricacies of the Mandelbrot Set, we are reminded of the power and elegance of mathematics, and the infinite possibilities it holds for understanding the world around us.
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Pale Blue Dot, Voyager 1
Mandelbrot fractal F008 / 4429
Fossil ammonite- Desmoceras spp. -Upper Early Cretaceous - Albian Stage - Mahajanga Province - Madagascar - Under UV light


November 21, 2014
This week, from our Primary class, we have an adorable story written by Cailin about a birthday party.
Additionally, we have a delightful Fibonacci poem written by Ms. Marcia’s class while learning this unique, numerically syllabic style of poetry. The Fibonacci is written in honor of the Fibonacci sequence of numbers. However, instead of going on and on for infinity, we stop at 8 and then reverse the numbers. So, these poems follow this syllabic sequence: 1, 1, 2, 3, 5, 8, 8, 5, 3, 2, 1, 1. We hope you enjoy it.


Multivariable Calculus Tutors in Lindenhurst, NY
Find Private & Affordable Multivariable Calculus Tutoring in the Lindenhurst Area!
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MIT - BA, Chemical Engineering
Punjab engineering colege - BE, Metallurgical Engineering , Stony Brook University - PhD, Materials Science and Engineering
New York University Polytechnic School of Engineering - BS, Chemical and Biomolecular Engineering
SUNY at Buffalo - Physics BS and Minor in math, Physics
Binghamton University (SUNY) - BA & BA, Mathematics & Economics
Boston University - BA, Statistics
Arizona State University - BA, Psychology


With a paid subscription, you can see the work that goes into its solutions, but the free version is Mathway: math problem solver for crunching numbers. Also, the calculator gives you to solve all the formulas in 2D as a well 3D plot. When you choose one of them from the list, you're given an example that can help you get started.
This feature is useful for when you require a site to have been tagged as something. Pi, for example, often stumped it. There was a time when we need to solve huge math problems on calculators with the full pressure on our mind.
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All the calculations you need to do, easily you can do it form here. If you would like to see complete solutions you have to sign up for a free trial account. Popularity The popularity of a website is, well, pretty much self explanatory.
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The toolbar at the top of the screen enables you to quickly select the area of mathematics you need help with; through the buttons below it you can easily define your problem.
Value Squared You could think of Mathway as the Photoshop of mathematical apps—it has far more features and functions than a typical user is ever likely to need.
Numerous applications are accessible now to unravel high level math problems. You can usually find the exact answer or, if necessary, a numerical answer to almost any accuracy you require.
Need to fix it up a bit! The Algebra Calculator is the only calculator on the site that I did not create myself. I did of course get stuck on some problems and did not know how to solve some of them so I payed the for monthly fee. Aims of research pdf Aims of research Mathway: math problem solver.
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Sometimes it kept freezing up and that was hard to work with. Trigonometry of a right triangle. Moreofit searches for websites that have similar tag signatures and displays the results.
Use the tabs to change levels. If you would like to view the step-by-step solution, tap the "Tap to view steps How to use the Algebra Calculator Step 1: QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students.
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Sorting Results This slider determines how the matched sites are sorted. Other than that is really good. So if you are having issues with the calculator, please visit the support page at Mathway. It also has commands for splitting fractions into partial fractions, combining several fractions into one and cancelling common factors within a fraction.
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Mathway Calculator – Math Problem Solver Mathway provides a free service to resolve math problems too difficult for individuals to solve on their own. Mathway Calculator can be used by the students and get the results of a math problem if they get stumped. Covering number theory, algebra, analysis, Euclidean geometry, and analytic geometry, Solving Mathematical Problems includes numerous exercises and model solutions throughout.
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Date of Award
Open Access Dissertation
College of Education
Doctorate of Education, Ed.D.
Belle B. Booker-Zorigian, Ph.D.
Joanna Gilmore, Ph.D.
Alecia C. Eubanks, Ph.D.
mindset, religiosity, achievement, math achievement, bioecological model
Growth mindset and religiosity as separate constructs have been shown to increase student achievement. This study sought to discover if a relationship existed between religiosity and mindset, as well as if mindset or religiosity could predict math achievement. A mixed methods study, guided by Brofenbrenner’s bioecological model, was conducted. This non-experimental quantitative study found a small statistically significant relationship between mindset and religiosity (p < .05). However, religiosity and mindset were not correlated with math achievement; therefore, these constructs could not be used to predict math achievement. Focus group interviews were used to further study the relationship between mindset and religiosity. Students were asked to describe how they developed both their mindset and religiosity beliefs, and then to discuss how these constructs work, both together and separately, to impact academic achievement. Through In Vivo and Process coding, two themes and one key assertion emerged from the interviews. Theme 1: Environmental factors impact religiosity and mindset. Theme 2: Religiosity and mindset impact academic success. Key Assertion: Religiosity and mindset are two distinct yet harmonious constructs within adolescents. Religiosity and mindset influence each other as students grow, develop, and achieve in school.
CU Commons Citation
Luebke, Kathryn, "Religiosity, Mindset, and Math Achievement" (2019). Ed.D. Dissertations. 305.


How to Play Casino Baccarat
Baccarat can be an online game that is similar to other casino games like poker or blackjack, but with a twist. The player is offered one card, usually representing the 우리 카지노 사이트 banker (not you! ), and a pile of cards, usually called the “jackpot” or “roulette” or just “pot”. The theory is for the player to predict what number should come out first on the list of cards – and win!
In traditional baccarat, the banker always wins. Which means that for any amount of hands played, the house edge on each hand is always smaller. In a normal game of blackjack and/or poker, the banker will always win, regardless of how many times the other players have gambled. And in a limit baccarat game where in fact the players are all betting exactly the same amount (say, 200 dollars), it could be fairly certain that there will be a single card out from the total deck that the banker will receive – and win. This is the familiar “red herring” effect.
However in online baccarat, there are two hands rather than just one. There is a lot of skill involved in having the ability to identify which cards are high, low, or mid-level (you know, ranging from an excellent to terrible investment). You need to look at all of the different combinations and learn how to apply the mathematical formula for probability, or binomial tree. In a traditional card game, in the event that you only knew one pair of cards, you would have an easier time choosing which card combinations to bet on.
In online baccarat, the combinations that you discover aren’t necessarily random. Instead, the machine uses probability and math, with each card representing something similar to a coin. In a traditional game of blackjack or poker, a banker (you) would take the amount of money from the pot (the amount of money that sits in the middle), and deal it to the dealer (the person in charge of the deck). Then, once you (the banker) draw a fresh card, the dealer would shuffle the cards and place them back the box.
In a traditional game of baccarat (or blackjack or poker, for that matter), the dealer has a “royal flush”. When this occurs, the banker has three options. He can keep the profit the pot, give it for you (your banker), or pass it around to other players (compared to the option for the banker). If a player bets along with his “bribe” (his initial bid), he gets the right to call the bet (since it continues to be a bet). However, if the banker passes it around to other players, they now all have a chance to either call it (even if their bids are significantly less than yours), raise it (if their bids are greater than yours), or fold.
A typical game of casino baccarat involves the next steps: First, the players divide up the initial amount of chips among themselves. Second, everyone chooses a hand, and everyone chooses a card. The player with the best total bets then reaches select a card and place his bet. The game now moves to the second phase.
In this phase, players have to await the banker to reveal his cards. The banker chooses two cards, and then puts them onto the table face down. The player who has drawn both cards must either call the bet, raise it, or fold, depending on which card he has picked. After revealing the cards, the banker must either pass them around to the players, or reveal them. If he reveals them before the players, they have to guess the numbers on the cards. However, if he reveals them following the players have to be able to guess, then your banker now knows the total of everyone’s bets and therefore knows exactly what another card is.
Following the player with the best winnings wins, then everyone gets to keep the cards that they won. However, in case a player bets exactly the same amount as the banker total, then everyone has to pay the same amount, irrespective of whether they bet the same amount because the banker or not. The croupier then calculates how much cash each player has in his or her bankroll. Then, the croupier deals the players their hands and lets them know very well what cards they just got. In a couple of seconds, a deal will be done, and the players can begin playing.


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Récord: 926 m
Récord de Altura: 242.50 m
Récord de Anchura de Vano: 926 m
Localización: Huangshi, Hubei
Descripción:E'dong bridge is a cable-stayed bridge with a main span of 926 metres. The bridge forms part of the G45 Daqing–Guangzhou Expressway and the G50 Shanghai–Chongqing Expressway near Huangshi, Hubei, China.
February 28, 201
The Geometric Nonliner Satatic Analysis of E Dong Yangtze River Bridge on Finished Stageg
The cable-stayed bridge is a kind of flexible structure system with high redundant numbers, by consist of three basic members, namely the tower, cables and girders. Its geometric nonlinearity is obvious, especially for the long-span cable-stayed bridge, thus the geometric nonlinear analysis of cable-stayed bridge structure become a significant research topic. This thesis adopts E Dong Yangtze River Bridge as engineering background, to compute geometric nonlinearity respond of the structure on finished stage.This thesis firstly introduces the development and research background of geometric nonlinearity for the cable-stayed bridge, then introduces the basic theory and numerical method of geometric nonlinearity; After that, the finite element full-bridge model of E Dong Yangtze River Bridge under finished stage is established, the geometric nonlinear calculation and analysis is carried out, the effect proportion of three geometric nonlinear factors for cable-stayed bridge namely cable sag effects, beam-column effects and large displacement effects are compared. Finally, the thesis discuses the reasonable unit size for cables during the calculation of geometric nonlinearity on the cable-stayed bridge, and give some references.Theoretical result shows that, with regard to geometric nonlinearity of the cable-stayed bridge under finished phase:(1) Cable sag effects, beam-column effects and the large displacement effects all have great impact on the displacement,while the greatest impact comes from sag cable effects, the large displacement effects follows, and the beam-column effects occupies the least;(2)Geometrically nonlinear factors to the axial force and bending moment on the bottom of the tower and the main beam axis force at the junction of tower and beam can be omitted, while have great impact on the mid-span girder bending moment and axial force, and and the main beam bending moment at the junction of tower and beam.(3) In the seondary constant loads, if no considering geometric nonlinearity, the results have a greater error, but during the vehicle live load, the results of nonlinear and linear geometric calculations differ litter;(4)In addition, geometric analysis results considering cable sag effects by the way of modifying Elastic Modulus by the Ernst formula has no significant difference with their real results;(5)With regard to the cable sag effects simulation by rod element method for long-span cable-stayed bridge, generally the cable element divided by 100m, and its results can meet the requirements.
Inserción: 2012-11-06 14:20:05
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Estadísticas Estadísticas Puertos/Aeropuertos


Time series analysis is a critical component of data science that is used to uncover insights and trends from data sets over time. By capturing data at regular intervals, time series analysis techniques provide a powerful framework to extract patterns from data and build predictive models. Many businesses are already leveraging time series analysis to predict sales, forecast demand, track customer sentiment, and more. In this article, we will explore the power of time series analysis and how it can contribute to the success of any data science project.
What is Time Series Analysis?
Time series analysis is the process of analyzing and modeling data collected over time. In its simplest form, a time series is a set of data points indexed in chronological order. Typical examples of time series data include stock prices, weather patterns, and sales numbers. The goal of time series analysis is to understand the underlying patterns and trends in the data and build models that can predict future values.
Why is Time Series Analysis Important?
Time series analysis is critical for data science because many real-world phenomena change over time. By analyzing patterns in data over time, businesses can make better decisions and build predictive models that help them identify opportunities and avoid risks. For example, retailers use time series analysis to forecast demand and optimize inventory levels, while healthcare professionals use it to track patient outcomes and predict disease outbreaks.
Applications of Time Series Analysis
In addition to forecasting future trends and values, time series analysis has several other useful applications. These include:
- Identifying trends and patterns in data
- Analyzing seasonality and cyclic patterns
- Detecting anomalies and outliers
- Predicting future values
- Building models for forecasting and prediction
Time Series Analysis Techniques
There are several time series analysis techniques that data scientists use to uncover insights and build predictive models. These include:
- Autoregression (AR)
- Moving Average (MA)
- Autoregressive Integrated Moving Average (ARIMA)
- Seasonal Autoregressive Integrated Moving Average (SARIMA)
- Exponential Smoothing (ES)
- Vector Autoregression (VAR)
In conclusion, time series analysis is a crucial tool for data scientists looking to unlock insights from data over time. By leveraging these techniques, businesses can drive better results, make smarter decisions, and identify new opportunities. If you're interested in learning more about time series analysis and how it can benefit your business, consider reaching out to a data science consulting firm to get started.


Looking For Math Help? Check It Out!
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Due to the digitalized planet that we are living at the moment, it is apparent that you can see and use calculators in the internet. Indeed, those people who have problems regarding Math can now access easily the calculators in the web because the primary goal of the inventors is to make their lives easier. You will discover that there are accessible programmable calculators in the web that you can utilize in case that you will choose to go online and look after them. In case that you wish to get help in order to calculate slope intercept, you will be glad to know that you can use the slope intercept calculator by simply going online.
There are various functions that can be offered by these programmable calculators to those individuals who are interested to learn solving Math problems. Truth to be told, a lot of universities at present choose to use these calculators in the web that includes slope intercept form calculator so as for their students to compute the answer to the problems that they need to solve. Thus, whether you want to use the y=mx+b calculator or the intercept calculator, it is possible for you to so for as long as you go online. Aside from that, if you choose to go for online calculators, it is apparent that there are several benefits that you can acquire.
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Bilenko & Mooney (2002):
The problem of identifying duplicate records in databases was originally described by Newcombe  as record linkage in the context of identifying medical records of the same individual from different time
periods. Fellegi and Sunter  developed a formal mathematical problem description for record linkage and offered statistical methods for estimating matching parameters and error rates. In more recent work in statistics, Winkler proposed using EM-based methods for estimating error rates and optimal matching rules . This work studied the duplicate detection problem for the specialized domain of census records, therefore all similarity metrics were hand-tuned for optimal performance in this domain.
Hern´ andez and Stolfo  developed the sorted neighborhood method for limiting the number of potential duplicate pairs that require distance computation, while McCallum et. al. proposed the canopies
clustering algorithm  for the task of matching scientiﬁc citations. Monge and Elkan developed the iterative merging algorithm based on the union-ﬁnd data structure  and showed the advantages of using a string distance metric that allows gaps . Cohen et. al. described the problem of duplicate detection as database hardening: inferring the most likely underlying databases without duplicates (a “hard” database) given a database containing duplicates (a “soft” database) . They proved NP-hardness of solving the problem optimally and proposed a nearly linear time algorithm for ﬁnding a local optimum using the union-ﬁnd data structure.
In all of these approaches ﬁxed-cost similarity metrics were used to compare database records. The only
previous work on adaptive duplicate detection that we know of is the approach described by Cohen in ,
which learns how to combine multiple similarity metrics to identify duplicates, but does not adaptively tune
the underlying ﬁeld-similarity metrics themselves.


|Symptoms||Increased Disease Probability (Positive Likelihood Ratio)|
|Posttussive Emesis||1.8× (1.4-2.2)|
|Paroxysmal Cough||1.1× (1.1-1.2)|
|Signs||Increased Disease Probability (Positive Likelihood Ratio)|
|Inspiratory Whoop||1.9× (1.4-2.6)|
|Sign / Symptom||Decreased Disease Probability (Negative Likelihood Ratio)|
|Paroxysmal Cough||0.52× (0.27-1.0)|
|Posttussive emesis||0.58× (0.44-0.77)|
|Signs||Decreased Disease Probability (Negative Likelihood Ratio)|
|Inspiratory Whoop||0.78× (0.66-0.93)|
Source: Cornia PB, Hersh AL, Lipsky BA, Newman TB, Gonzales R. Does this coughing
adolescent or adult patient have pertussis? JAMA. 2010 Aug 25;304(8):890-6. doi:
10.1001/jama.2010.1181. Review. PubMed PMID: 20736473.
Author: Rodrigo Kong, MD and Shahriar Zehtabchi, MD
Published/Updated: February 15, 2013
LR, pretest probability and posttest (or posterior) probability are daunting terms that describe simple concepts that we all intuitively understand.
Let's start with pretest probability: that's just a fancy term for my initial impression, before we perform whatever test it is that we're going to use.
For example, a patient with prior stents comes in sweating and clutching his chest in agony, I have a pretty high suspicion that he's having an MI – let's say, 60%. That is my pretest probability.
He immediately gets an ECG (known here as the "test") showing an obvious STEMI.
Now, I know there are some STEMI mimics, so I'm not quite 100%, but based on my experience I'm 99.5% sure that he's having an MI right now. This is my posttest probability - the new impression I have that the patient has the disease after we did our test.
And likelihood ration? That's just the name for the statistical tool that converted the pretest probability to the posttest probability - it's just a mathematical description of the strength of that test.
Using an online calculator, that means the LR+ that got me from 60% to 99.5% is 145, which is about as high an LR you can get (and the actual LR for an emergency physician who thinks an ECG shows an obvious STEMI).
(Thank you to Seth Trueger, MD for this explanation!)


FPSC Lecturers Mathematics Preparation Course
Build a strong foundation and ensure your position as a Lecturer
Mastering FPSC Mathematics Lecturer Examination: A Comprehensive Course
High Scoring Challenge: Challenge yourself until you master every concept
Learning box: Super Easy way to learn all the complex concepts
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Welcome to the comprehensive preparation course for the FPSC Lecturers Mathematics examination. This course is specifically designed to equip aspiring candidates with the knowledge and skills necessary to excel in the Federal Public Service Commission (FPSC) examination for Mathematics lecturers. Through this program, you will gain a deep understanding of mathematical concepts, theories, problem-solving techniques, and their practical applications, enabling you to confidently approach the exam.
Why do you need this course?
- To discover your strengths and leverage them effectively.
- To gain motivation to excel and reach your full potential.
- To rectify mistakes and improve your performance.
- To gain instant clarity on challenging concepts.
- To reduce anxiety and increase confidence for the exam.
- To develop a sense of control over your preparation.
- To apply knowledge in real-time situations beyond the exam
- Analytical Geometry Of Three Space
- Complex Numbers
- Differential Equations
- Laplace Transformation
- Real Numbers
- The Derivative
- Vector Analysis
- Vector Spaces And Inner Product Spaces