Translations:FreeCAD vector math library/2/en

Vectors are the building bricks of almost all 3D geometric operations, so it is useful to know a bit about them to understand how these functions can be useful to you. A couple of good pages to learn the basics of vector math:
 * http://en.wikipedia.org/wiki/Vector_space
 * http://maths-wiki.wikispaces.com/Vectors
 * http://darksleep.com/player/opengl_coordinate_system_and_matrix_math.html