jsxgraph is a cross-platform, cross-browser javascript library that can generate general-purpose 2D graphics. The following custom pie chart uses standard jsxgraph functions (sector, line, point, text) to replace the provided standard pie chart to show the top ten countries using … Đọc tiếp →

http://meta.math.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference http://www.suluclac.com/Wiki+MathJax+Syntax For inline formulas, enclose the formula in $…$. For displayed formulas, use $$…$$. These render differently: ∑ni=0i2=(n2+n)(2n+1)6 (inline) or ∑i=0ni2=(n2+n)(2n+1)6(displayed) For Greek letters, use \alpha, \beta, …, \omega: α,β,…ω. For uppercase, use \Gamma, \Delta, …, \Omega: Γ,Δ,…,Ω. For … Đọc tiếp →

Note 4. Linear inequality relationship (with shaded regions). 1. jsxgraph has limited ability to display the solution set of a linear inequality (less than or equal to). The area drawn will be the area below this line. With the attribute … Đọc tiếp →

Note 3. Periodic function such as $f(x)=sin(x)$ has a period of $2π$, since the complete circle is $2π$ radians. The display ticks and grids in this case needs to be multiple of π. This is almost required for most trigonometric … Đọc tiếp →

Note 5. The first graph displays grids as semi-log (the tick marks on y-axis are positioned in log scale while the x-axis has the linear scale). 1. Log base-10 is used so that log(10) is 1. Javascript math function supports … Đọc tiếp →

Note 2. The following customizations are needed to draw standard Cartesian x-y plots. 1. Create the Cartesian vertical and horizontal axis with custom tick marks and labels. The x-axis label is drawn at specified location below the axis. The y-axis … Đọc tiếp →

According to its developer, the University of Bayreuth, Germany, JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser. This software is implemented completely in JavaScript, and does not rely on any … Đọc tiếp →

The Python computer algebra package Sage and its built-in Matplolib are useful shortcuts to the development of integrated solution to teaching and grading numerous calculus exercises and concepts. This article summarizes major differences of plotting via Sage graphics vs. using … Đọc tiếp →

Dec. 9, 2014, Sage useful commands to make homework keys in Algebra & Calculus. 1. To save the definitions of all functions and variables including history of input and output commands: %colors NoColor save_session() or save_session(‘2014.12.07’) The saved session can … Đọc tiếp →