Peter Nowell ▸ Cubic Bezier Curves - Under the Hood
"Take a peek under the hood to see how computers draw cubic Bézier curves, as used in design and motion graphics programs."
A nice little introduction on bézier curves, from the mathmatical side of things.
Random trivia: Acorn uses three different implementations of bezier curves for various bits. One is NSBezierCurve, which is provided by Apple's frameworks, as well as two I've written myself (for the bezier shape, as well as smooth brush strokes).
If you watch that video, and think "hey, this is awesome I'd love to know more", make sure to check out A Primer on Bézier Curves by Mike Pomax.
Via John Nack.