JSXGraph

Interactive Geometry, plotting, visualization

JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser. It is implemented completely in JavaScript and uses SVG and VML. JSXGraph is easy to embed and has a small footprint: less then 100 KByte if embedded in a web page. No plug-ins are required!
JSXGraph is developed at the Lehrstuhl für Mathematik und ihre Didaktik, University of Bayreuth, Germany.

Features

• Euclidean Geometry: Points, lines, circles, intersections, perpendicular lines, angles
• Curve plotting: Graphs, parametric curves, polar curves, data plots, Bezier curves
• Differential equations
• Turtle graphics
• Lindenmayer systems
• Interaction via sliders
• Animations
• Polynomial interpolation, spline interpolation
• Tangents, normals
• Initial support for charts
• Vectors

License

JSXGraph is released under the LGPL – Lesser GNU General Public License. So, everybody is encouraged to use it.