We all know that each and every flash 3D engine comes with 4x4 matrix math code (and sometimes 3x3 operations included), but recently I ran into a problem solving equation involving 4x3 (and, obviously 3x4) matrices at runtime. Having no suitable code at hand, I resorted to mathcad symbolic solution in terms of numbers that make up these matrices; needless to say, implementing these expressions is not fun. So. Does anyone know solid matrix math library for as3 that can operate with matrices of any dimensions?