Approximating planes and osculating plane

This demo illustrates the osculating plane (at the white point; drawn in blue and white) as the limit of approximating planes. The three points (one in white and two in black) on the curve determine an approximating plane (in yellow and cyan) - the plane in space containing all three points. When the black points approach the white point (use the player), this approximating plane tends to the osculating plane.
Use the scroller to shift to another (white) point on the curve.

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Last modified: Tue Dec 4 12:02:52 MET 2001