Named after the French mathematician Pierre Bézier, Bézier curves employ at least three points to define a curve. The two endpoints of the curve are called anchor points. The other points, which define the shape of the curve, are called handles, tangent points, or nodes. Attached to each handle are two control points. By moving the handles themselves, or the control points, you can modify the shape of the curve.

Bézier Curve Demo
Allows you to create your own Bézier curve by clicking four times anywhere on the screen.

Bézier Curve Overview
Describes what Bézier curves are and offers links to: the math, a simple curve, lines, recurves, loops, and some demos.