ZeGrapher provides plot various functions. It is a fast an easy-to-use mathematical function plotting application.
This handy tool can be specially suitable for high school students that need to plot different functions.
ZeGrapher Features:
1. Draw up to six functions
2. Table of values
3. Color customization
4. Software or OpenGL rendering engine
5. Easy navigation on the graph: move, zoom, scale.

Requirements:
* Qt

The license of this software is Free, you can free download and free use this calculator software.