{require lib_matrix} {M.disp {M.transp [[1, 1, 1, 1], [2, 4, 8, 16], [3, 9, 27, 81], [4, 16, 64, 256], [5, 25,125, 625]] }} -> [[1,2,3,4,5], [1,4,9,16,25], [1,8,27,64,125], [1,16,81,256,625]]