A JS utility class used to find intersections between any combination of lines, circles, ellipses, polylines, polygons, rectangles, quadratic beziers, and cubic beziers

A geographic toolkit for dealing with geometry, geography, formats, and building geo databases

a cheat-sheet for mathematical notation in code form

A JavaScript library for doing geometry.

math for origami. linear algebra, geometry, 2D and 3D, good interoperability with SVG

Boolean operations on polygons (union, intersection, difference, xor)

A markup-based typesetting system that is powerful and easy to learn.