This example shows the default curve iterated by the sample
movie. The small black square moves from the origin point *x _{0},y_{0}*
(large green dot) to the destination point

The movement along this curve is fairly steady. There are
50 points along the curve, with *t* increasing by 0.02 each iteration.

The curve's slope (or direction) at the origin is tangent
to the line between *x _{0},y_{0} *and

The length of the line between each endpoint and its associated control point determines the speed of the movement along segments of the curve, as we'll see when we look at how you can use Bézier curves to create straight-line animations with acceleration and deceleration.

Shockwave Bézier demo | The Bézier curve slider demo

The Virtual Ouija Board