21. The Wolfram Functions Site Includes advanced formulas and visualizations of various equation, such as elliptical curves. http://functions.wolfram.com/

This site is created with Mathematica and is developed and maintained by Wolfram Research with partial support from the National Science Foundation. As of October 31, 2010

22. Heron's Formula For The Area Of A Triangle - Math Open Reference A method for calculating the area of a triangle when you know all three sides. http://www.mathopenref.com/heronsformula.html

23. Table Of Contents - Math Open Reference can support this site at no cost to you. http://mathopenref.com/

24. Area Of An Ellipse -- Math Fun Facts You know the formula for the area of a circle of radius R. It is Pi*R 2. But what about the formula for the area of an ellipse of semimajor axis of length A and semi http://www.math.hmc.edu/funfacts/ffiles/10006.3.shtml

hosted by the Harvey Mudd College Math Department Francis Su The Math Fun Facts App is now in the App Store Subscribe to our RSS feed or Any Easy Medium Advanced The Math Fun Facts App! List All List Recent List Popular ... Francis Edward Su From the Fun Fact files, here is a Fun Fact at the Easy level: Area of an Ellipse Figure 1 You know the formula for the area of a circle of radius R. It is Pi*R But what about the formula for the area of an ellipse of semi-major axis of length A and semi-minor axis of length B? (These semi-major axes are half the lengths of, respectively, the largest and smallest diameters of the ellipse- see Figure 1.) For example, the following is a standard equation for such an ellipse centered at the origin: (x /A ) + (y /B The area of such an ellipse is Area = Pi * A * B , a very natural generalization of the formula for a circle! Presentation Suggestions: If students guess this fact, ask them what they think the volume of an ellipsoid is! The Math Behind the Fact: One way to see why the formula is true is to realize that the above ellipse is just a unit circle that has been stretched by a factor A in the x-direction, and a factor B in the y-direction. Hence the area of the ellipse is just A*B times the area of the unit circle.

25. Mathematics Online Resources At Education Index Offers a large number of links to mathematical resources, dedicated to various topics. http://www.educationindex.com/math/

Refer a Friend Homepage Resources Mathematics We're continually reviewing new sites and adding resources, and appreciate your comments and suggestions. Suggest a link here Geography AAAS Directorate of Education and Human Resources Programs None The Abacus: The Art of Calculating with Beads This is a great site, interactive and informative. There is an abacus that you can use by clicking your mouse pointer on the beads and instructions to tell you how to do it to perform the mathematical functions. Algebra Online If you're taking algebra and need some help, or just want more information, you can check out this site. It has a lot of hints, help, and examples to make algebra easier...and maybe even more fun. American Mathematical Society Online mathematical resources for professional mathematicians, professors, and more. A complete online list of members, member services, mathematics journals, papers, and much more. A valuable resource. Ask Dr. Math

26. Mechanics And Mathematics Refferences Tuesday 03 August, 2010 179879 requests since Friday 13 April, 2007 http://www.mathreferences.com/index.php

27. Latex Math Symbols LaTeX Math Symbols Prepared by L. Kocbach, on the basis of this document (origin David Carlisle, Manchester University) File A.tex contains all necessary code http://www.fi.uib.no/Fysisk/Teori/KURS/WRK/TeX/symALL.html

LaTeX Math Symbols Prepared by L. Kocbach, on the basis of this document (origin: David Carlisle, Manchester University) File A.tex contains all necessary code This file is prepared by running latex A.tex and cutting the pictures out of the resulting preview. Relevant parts of the latex code are reproduced under each of the pictures. Some of the symbols have an explanatory text. This text is found in the latex code, mostly stating that they are parts of some spacial setup and cannot be used in standard LaTeX. Each of the figures also has a link to itself. Greek Letters t1.gif Binary Operation Symbols t2.gif Relation Symbols t3.gif Punctuation Symbols t4.gif Arrow Symbols t5.gif Miscellaneous Symbols t6.gif Variable-sized Symbols t7.gif Log-like Symbols t8.gif Delimiters t9.gif Large Delimiters t10.gif Math mode accents t11.gif Some other constructions t12.gif

28. Numerical Adjectives, Greek And Latin Number Prefixes Tables for Greek and Latin number values alone and as a part of other words. http://phrontistery.info/numbers.html

support the phrontistery Language Resources Home International House of Logorrhea Compendium of Lost Words 2 and 3-Letter Scrabble Words ... Language Links Numerals Glossographia Numerical Prefixes Numerical Notation Bibliography Paleolithic Notation Bibliography ... Numeration Books Glossaries Adjectives of Relation Bearing and Carrying Carriages and Chariots Causation and Formation ... New List Ideas Bookstore Reference Shelf Fiction and Non-Fiction Numeration Books Philms of the Phrontistery Other Phrontistery: Origins and Symbols Mission Statement Forthright's Biography Friends of the Phrontistery ... Archives Numerical Prefixes In this page, I discuss a curious set of unusual words: adjectives and nouns for numerical values or multiples. What do you call a group of eleven musicians? An athletic competition with six events? An event that recurs every twenty years? It can be very difficult to figure out what sort of prefix to use, and there are plenty of exceptions to the rules. Because many of these words aren't found in dictionaries (particularly as the relevant numbers get larger), having some general principles can help. Thus, where other word lists of the Phrontistery are simply listed in "word: definition" form, this page will try to show you, in tabular format, how to construct your own terms from the basic principles, and to give you a better grasp of this tricky topic. Let's begin! In general, these words are made by combining a prefix derived from Latin or Greek number words and a suffix indicating the type or category of the thing being counted. If you know a lot of word etymologies, you can usually figure out whether a word takes a Latin or Greek numerical prefix if you can tell whether the suffix you want to use is Latin or Greek in origin. However, if you can't work out the etymology, it's probably best to just look at the lists below, which indicate which prefixes are used with which suffixes. Besides, there are exceptions to this general rule.

29. Wolfram MathWorld: The Web's Most Extensive Mathematics Resource Oct 11, 2010 Glossary of terms. Material ranges from undergraduate to research level. http://mathworld.wolfram.com/

Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Other Wolfram Sites: Wolfram Research Demonstrations Project Integrator Tones Functions Site Wolfram Science Computational knowledge engine for math and much much more.... Mathematica Home Page

30. Haptonstahl - Math References Family site for the Haptonstahl family Math References Quasimeasure community Dan Grubb, Johan Aarnes, Svetlana Butler, Tim LaBerge, John Bordman, Robert Denk, http://www.haptonstahl.org/math/

Math References Quasimeasure community: Dan Grubb, Johan Aarnes, Svetlana Butler , Tim LaBerge, John Bordman, Robert Denk Zbigniew Lipecki Finn Knudsen Organizations American Mathematical Society Mathematical Association of America Society for Industrial and Applied Mathematics Journals: Electronic library of mathematics References: hyperbolic functions integrals topology definitions famous constants ... list of other references LaTeX: my Crash Course Mathematical geneology: Find out who studied under whom here Did this help? Email me Return to the Home of the Haptonstahls

31. MathSites MATH REFERENCES Algebra Buster A site focused exclusively on algebra, there is a large message board that students and teachers can use to ask questions and discuss curriculum. http://www.pleasanton.k12.ca.us/avhsweb/concannon/MathSites.html

Concannon Home HOTMATH A step by step helpful guide on how to approach homework problems. Begin by logging in with the AVHS math department password (de34685ca) and then click on your subject and the book we are using in class. If you are struggling with a homework problem, this online tutorial will provide hints to the solution. FUN WITH MATH Family Challenge Developed by NCTM (National Council of Teachers of Mathematics) this site is designed to encourage family support and parental involvement in an effort to improve mathematics education. There are math challenges that support the standards that students can work on at home. By engaging students and families outside of school, students will develop a better sense of how math can be used and why it is important to their life. Math Celebrities Celebrity athletes, concert tour managers, fashion designers and Doctors are a few of the many professions that involve math. Take a minute to see how your favorite celebrity uses math to be successful. You can also use this site to earn money for yourself and for your school, take the time to fill out the scholarship information for a chance to receive $1000. Cool Math Fun for all ages! There are math games, math lessons and math learning tips. This site is a little difficult to manipulate through, but provides some practice for students struggling with basic skills. One of the most helpful things that this site provides is an online graphing calculator, take the time to explore graphs of all shapes and sizes.

32. 算盤 ABACUS: MYSTERY OF THE BEAD - Abacus Instructions Manual. Learn How To Us History of the abacus and an instruction manual on its use. http://webhome.idirect.com/~totton/abacus/

ABACUS: MYSTERY OF THE BEAD THE BEAD UNBAFFLED - An Abacus Manual History Abacus Techniques Addition Subtraction ... Email Abacus: Mystery of the Bead

33. Math On The Web: References Mathematical Reviews Reference Resources. MR/Zentralblatt Mathematics Subject Classification MSC2000 MR/Zentralblatt Mathematics Subject Classification http://www.ams.org/mathweb/mi-reference.html

Mathematics on the Web Reference Materials AMS Website Math on the Web Reference Materials Dictionaries and Thesauri English English-Other Handbooks ... Other Collections Dictionaries and Thesauri English Language Materials General Dictionaries Hypertext Webster Gateway OneLook Dictionaries One Look Dictionaries, The Faster Finder indexes 252136 words in 61 dictionaries (Nov 15, 1996) On-line English Grammar Online English Grammar (Jack Lynch, Rutgers U, NJ USA) ARTFL Project: 1913 Webster's Revised Unabridged Dictionary (U Chicago) Technical Dictionaries Biotechnology Dictionaries List (UC Davis, CA USA) Free On-Line Dictionary of Computing (Imperial College, London UK) ILC Glossary of Internet Terms Software Engineering Glossary (CERN, Switzerland) US Federal Telecommunications Glossary The Telecommunications Glossary (South Africa) Acronyms The WorldWideWeb Acronym and Abbreviation Server (Iowa State University, Ames IA, USA) CORDIS RTD Acronyms Database (University College Dublin, IE) Acronyms (both German and English) (FU Berlin) YAAS Acronym Server ABKLEX List of acronyms by W. Alex (U Karlsruhe)

34. Math References NonRelativistic Electrodynamics Up Mathematical Physics Previous Groups of Transformation Contents Math References. www.grc.nasa.gov/WWW/K-12/Numbers/Math/documents/ http://www.phy.duke.edu/~rgb/Class/phy319/phy319/node30.html

Next: Non-Relativistic Electrodynamics Up: Mathematical Physics Previous: Groups of Transformation Contents Math References www.grc.nasa.gov/WWW/K-12/Numbers/Math/documents/... Tensors_TM2002211716.pdf . This is a NASA white paper by Joseph C. Kolecki on the use of tensors in physics (including electrodynamics) and is quite lovely. It presents the modern view of tensors as entities linked both traditional bases and manifolds much as I hope to do here. Mathematical Physics by Donald H. Menzel, Dover Press, ISBN 0-486-60056-4. This book was written in 1947 and hence presents both the ``old way'' and the ``new way'' of understanding tensors. It is cheap (as are all Dover Press books) and actually is a really excellent desk reference for both undergraduate and graduate level classical physics in general! Section 27 in this book covers simple cartesian tensors, section 31 tensors defined in terms of transformations. Schaum's Outline series has a volume on vectors and tensors. Again an excellent desk reference, it has very complete sections on vector calculus (e.g. divergence theorem, stokes theorem), multidimensional integration (including definitions of the Jacobian and coordinate transformations between curvilinear systems) and tensors (the old way). http://www.mathpages.com/rr/s5-02/5-02.htm

35. Math References Microworlds References. Reference Web Site. MicroWorlds http://www.piedmont.k12.ca.us/havens/tsmith/pedagogy/microworlds.htm

Microworlds References Reference Web Site MicroWorlds

36. Sin And Cos In Surds Sin and Cos expressed in square roots, simplified with rationalised denominators. http://www.jdawiseman.com/papers/easymath/surds_sin_cos.html

Main index Other Papers index About author Sin and Cos in Surds Julian D. A. Wiseman Contents: n n n , and Publication history: only here. Usual and terms apply. Also see the values of Cosecant[] = Cosec[] = Csc[] = 1/Sin[] and Secant[] = Sec[] = 1/Cos[], in surds , the values of Tan[] in surds , and the inner radius of n m stars, in surds Graphical formula LaTex : a LaTeX expression. Excel CalcCenter : if one enters Sqrt[2]/2 directly into Mathematica CalcCenter (the budget version of Mathematica), it automatically evaluates the expression numerically, frustrating an attempt to work with surds. To prevent this integers inside the inner-most Sqrt s have been replaced with the likes of , which CalcCenter treats as a variable. If using the full-expense Mathematica Postscript : using 5 5 sqrt sub 8 div sqrt rather than 36 sin Help! Errors the author Credit : in this post (on a password-protected bulletin board) Arthur L. Rubin the author thought of it first. Graphical formula LaTeX Excel CalcCenter PostScript Sin[ Sin[ =( Sqrt(2)*(Sqrt(3)+1)*(Sqrt(5)-1) - 2*(Sqrt(3)-1)*Sqrt(Sqrt(5)+5) ) / 16 ( Sqrt[Int2] (Sqrt[Int3]+1) (Sqrt[Int5]-1) - 2 (Sqrt[Int3]-1) Sqrt[Sqrt[Int5]+5] ) / 16 3 sqrt 5 sqrt 2 copy 1 sub exch 1 add mul 2 sqrt mul exch 5 add sqrt 3 -1 roll 1 sub mul 2 mul sub 16 div =Sqrt( 8 - Sqrt(10-2*Sqrt(5)) - Sqrt(3)*(1+Sqrt(5)) ) / 4 Sqrt[ 8 - Sqrt[10-2 Sqrt[Int5]] - Sqrt[Int3] (1+Sqrt[Int5]) ] / 4 8 5 sqrt dup 1 add 3 sqrt mul exch -2 mul 10 add sqrt add sub sqrt 4 div Sin[ =Sqrt( 2 - Sqrt( 2 + Sqrt(2+Sqrt(2)) ) ) / 2 Sqrt[ 2 - Sqrt[ 2 + Sqrt[2+Sqrt[Int2]] ] ] / 2

37. Popular Math Graphic Organizers For Grades K-12 - TeacherVision.com to introduce new topics and review learned concepts, no matter which grade your students are in. Find a variety of mathrelated graphic organizers to help. http://www.teachervision.fen.com/math/graphic-organizers/53511.html

var do_survey = 1; click here Free Trial Member Benefits Sign In Oct 31, 2010 Search: Home Grades Subjects Themes ... Calendar United States NEW CONTENT SLIDESHOWS NEWSLETTERS PRINTABLE BOOKS ... PRO. DEV. Select a Country Please select your location to view the most relevant content for you. United States Australia Canada United Kingdom Mathematics (4246 resources) Share Popular Math Graphic Organizers Graphic organizers are a great way for you to introduce new topics and review learned concepts, no matter which grade your students are in. Here, you'll find a variety of math-related graphic organizers that you can print and hand out to your class. Homework Checklist Blank Bar Graph, Version 1 Double Venn Diagram, Version 1 12-Digit Place-Value Charts ... Traceable Calendar Activity More Math Graphic Organizers click here Free 7-Day Trial for TeacherVision Sign up for a free trial and get access to our huge library of teaching materials! What Does Your School Need? What does your school need? Show us. Tell us. Your school could win up to $100,000. Get started now!

38. Math References: Mathematics For The 21st Century Math References Dr. Kinney's Recommended Readings. Research Centers and OnLine References. Professional Societies and Organizations. Software and Tools http://www.rose-hulman.edu/math21st/res_index.html

Math References Dr. Kinney's Recommended Readings Research Centers and On-Line References Professional Societies and Organizations Software and Tools ... Other Topics of Interest Return to: Math for the 21st Century Last updated: September 8, 2010 T.C.

39. Monty Python And The Holy Grail Extra Credit The extra credit assignment is to watch Monty Python and the Holy Grail and write down at least 3 math references from the movie, two of which must somehow be related to this class. http://www4.ncsu.edu/~edbancro/teaching/2009spring/monty_python.html

The extra credit assignment is to watch Monty Python and the Holy Grail and write down at least 3 math references from the movie, two of which must somehow be related to this class . (if it's not immediately obvious how it relates, give a short explaination). I'm not too particular as to what constitutes a "math reference", as long as it's not too much of a stretch. If you're having trouble finding quotes, you may also come up with a word problem relating to a situation in the movie. The compete assignment will be worth a minimum of 3 points (added to your best test). I may give extra points based on the quantity and quality of the references, and how amused I am by your references. This is due at noon on Monday, April 27th - no late submissions will be accepted! You may e-mail me the assignment (typed or scanned) if you wish (*.pdf, *.jpg, *.txt, *.tex, or *.doc files only). If you've never seen it or if you're not a Monty Python fan, I would suggest watching it in a group. However, you should list the people in the class with whom you watched the movie, and be sure that you're not all using the same references. Credit will not be given if you just copy quotes from someone else.

40. AMS Prizes And Awards Details of prizes awarded by the American Mathematical Society. http://www.ams.org/prizes-awards

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