Wikipedia:Today's featured picture (animation)/August 19, 2007

1.Linear v2 2.Quadratic v2
3.Cubic v2 4.Quartic v2

A set of four types of Bézier curves, parametric curves important in computer graphics: (1) a linear curve, (2) a quadratic curve, (3) a cubic curve, and (4) a quartic curve. Modern computer fonts use Bézier splines composed of quadratic or cubic Bézier curves to create typefaces.

Image credit: Phil Tregoning