By Murray Bourne, 30 Apr 2013
MathGraph32 is a great free tool for exploring 2D and 3D math concepts.
(It's been around for a while, but I only recently discovered it.)
There is a download version as well as an online Java-based version.
According to the site, MathGraph32 is an:
Open source cross-platform software of geometry, analysis and simulation.
It was developed by French-speaking mathematician, Yves Biton. Some of the examples are in French, but it's quite easy to see what is going on. (There is an English version of the program).
Here are some examples from MathGraph32 (images by them).
You can explore several examples (some for "teaching purposes"), and there are tutorials that help explain the use of the applet.
It's well worth checking out!
The link again: MathGraph32
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