Visualizing vector algebra using WebGL...

Stop Button: stop auto-rotate
Circle Button: start auto-rotate

Once auto-ratation is stopped, all the other buttons allow you to move about the 3-space.

Animate Circle Button Source:
This will highlight the code in red as it executes a frame of rotation. Press the "Stop" button, then the "Animate Circle Button Source".
To stop, press the "Animate Circle Button Source Stop".

Warning: this webgl stuff will eventually crash your browser. Still not doing something quite right.