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Sage: Open Source Mathematics Software

Sage: Open Source Mathematics Software

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Authentic Assessment in Mathematics Home Page The Geometry Forum Summer '94 Workshop at Swarthmore College, Swarthmore, PA. The goal of this project was to collect and organize available INTERNET resources on Authentic Mathematical Assessment applicable to Secondary Schools. What is it? Are there examples? Where can I find additional information? Introduction to UML2 Profiles Copyright 2004, 2008 International Business Machines Corp. Summary This article describes how to work with profiles using the UML2 plug-ins for Eclipse. In particular, it gives an overview of how to create and apply profiles (and their contents) both programmatically and by using the sample UML editor Kenn Hussey, IBM (Updated: for Eclipse 3.4; James Bruck) Prerequisites To start using UML2 (and to follow along with the example in this article), you must have Eclipse 3.4, EMF 2.4, and UML2 2.2 installed. You can either download the zips individually and expand them out or follow the steps below:

Jim Loy's Mathematics Page Go to my home page Participate in The Most Pleasing Rectangle Web Poll which recently moved to "He must be a 'practical' man who can see no poetry in mathematics." - W. F. White. mocl: Lisp for iPhone/iOS, Android, and other mobile platforms mocl is built around the idea that your application logic should live in Lisp, and your user interface code should be fully native to the platform — Obj-C or Java in the case of iOS and Android. This is not unlike the web, where your server logic is in one language (hopefully Lisp), and the client logic is in HTML/JavaScript. For example:

Free Mathematics Resources OnLine What about free graphing and algebra on your mobile phone? XCalc is a free Java Applet which offers a graphing calculator for any mobile phone which runs Java (which is nearly all of them now!) Think about the possibilities for classes that do not yet have access to graphing calculators! While limited (it does not yet have a trace facility) it DOES offer 2d and 3d graphing which is quite fast and powerful. Well worth a play! Now, combine that with quite a useful algebraic workpad that allows you to define variables and formulas and evaluate these.

Protovis Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that quickly become tedious for visualization, Protovis defines marks through dynamic properties that encode data, allowing inheritance, scales and layouts to simplify construction. Protovis is free and open-source, provided under the BSD License. It uses JavaScript and SVG for web-native visualizations; no plugin required (though you will need a modern web browser)! Although programming experience is helpful, Protovis is mostly declarative and designed to be learned by example. Protovis is no longer under active development.The final release of Protovis was v3.3.1 (4.7 MB).

Matematicas Visuales In MatematicasVisuales you will find visual expositions of mathematical concepts. MatematicasVisuales intends to complement the work initiated by artiludios, a site with games, puzzles and mathematical curiosities. Reading Miguel de Guzmán I found a demonstration of the line of Simpson and the Steiner Deltoid. It serves as an introduction to the geometry section.

Why Lisp The most amazing thing is what Lisp ended up being out of pure serendipity. John Mc Carthy was going after a universal function that would compete or replace a Turing Machine. But when S.R. Russell noticed that eval could serve as an interpreter for LISP, and promptly coded it -- against John Mc Carthy's advice and wishes, we ended up with a very special programming language, where code is always data, and data can be code, where a simple interpreter and a handful of primitives define a powerful language:

Cycloid Optical Illusion Will Boggle Your Mind Optical illusions typically prey on your mind’s ability to fill in blanks in the visual stimulus it is receiving. Sometimes this can be so strong, your mind continues to be tricked even after it has been explained. Case in point: this video from brusspup, purveyor of mind-melting illusions. The video looks like a wheel made out of eight white circles is rolling around inside of a large, red circle. That’s not what is actually happening, as the video will explain:

Topic Based Subsets We pick topics that have been of lasting interest and subset them into their own federated wiki sites. These sites are the culmination of a project to Subset Wiki. We collect a few closely related subsets in neighborhoods. We define this by selecting one representative page out of each subset for our collections. Federated wiki will reach beyond these for as all the related pages enter your neighborhood.

Scientists Discover 15th Convex Pentagon Able To Tile A Plane Consider the ceramic on the floor beneath you. Those squares or rectangles tile the plane. That's a mathematical term, and finding a new shape that covers a flat surface using only exact copies of that one shape without overlapping or leaving any gaps is a mathematical challenge. All triangles can tile the plane, all quadrangles, too. But only 14 pentagons - five-sided shapes - could do it. Or so we thought, to the extent that we thought about this at all.