PRO arr_matrix_multip a = indgen(3,2) + 1 b = indgen(2,3) - 1 print, 'a = ' print, a print, 'b = ' print, b c = a # b print, 'c = a # b' print, c print, 'transpose(c)' print, transpose(c) d = indgen(2,4) - 2 e = indgen(4,2) + 2 print, 'd = ' print, d print, 'e = ' print, e f = d ## e print, 'f = d ## e' print, f END