Coordinate Transformations
A useful applet for anyone with an interest in math and graphics
The Coordinate System Transformations applet teaches several concepts. The first is how a transformation applied to a coordinate system affects the axes of that coordinate system.
Second, this applet shows how looking at only a very small portion of any curve produces a straight line (linear approximation) of that curve.
Finally, this applet shows how a transformation of the coordinate system affects any objects within that coordinate system.
Take Coordinate Transformations for a test drive to see just how useful it can actually be for you!