Hi Folks! Here is an AutoIT script that performs some matrix computations. Reference: FORTRAN 90 for Scientists and Engineers by Brian Hahn, March 1994 in paperback, 368 pages, ISBN 0 340 60034 9 ?6.95 Enjoy, ctl3d32 #include <Array.au3> Local $A [3][3] = [[2,2,2],[3,2,2],[3,2,3]] Local $Aa [2][2] = [[1,2],[3,4]] Local $Bb [2][2] = [[5,6],[0,-1]] Local $b [3][1] = [[0],[1],[1]] _ArrayDisplay(_Inv($A), "Matrix Inversion") _ArrayDisplay(_sMul($A,2), "Matrix *