Ornamental Movement Drawings curves with the body, in part or whole.

Drawing curves required knowing hundreds of computer codes, which had to be typed in on a keyboard.

The term spline is derived from a flexible strip of metal commonly used by draftsmen to assist in drawing curved lines.

Geometric Elliptic Curve Model(Java-Applet drawing curves)

Modern imaging systems like PostScript, Asymptote, Metafont, and SVG use Bézier splines composed of cubic Bézier curves for drawing curved shapes.

Some of his particular contributions were the introduction of slide rule and seven-figure log tables to work out formulae he invented for drawing curves, work which is now undertaken by complex Computer Aided Design software.