Grapher is a graphing calculator application on the Macs.
A full-featured graphic calculator, Grapher enables the real-time analysis and visualization of mathematical equations. It can display single or multiple equations in one graph, and it supports 2D and 3D rendering and animation. Grapher lets you save and export animations as QuickTime files (http://www.apple.com/accessibility/macosx/literacylearning.html).
An alternative to the graphing calculator.

Grapher Guide
Grapher - Wikipedia

Best Practices

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