#csv2svg, the Hypertext Vector Graphing Calculator By Yaroslav Solyanikov - http://plot.paleomag.ru/

This is a JavaScript implementation of a graphical calculator, with support for standard algebraic functions in the Cartesian plane. Features include fast, accurate graphing and full mouse (touchpad) zoom and pan support. Additionally, there are many graphing tools available, such as plotting inside user's rectangle, saving SVG files etc.