(* *) (* Numerical Mathematics and Computing, Fifth Edition *) (* Ward Cheney & David Kincaid *) (* Brooks/Cole Publ. Co. *) (* (c) 2003 *) (* No warranties implied or expressed. *) (* File: timing *) (* Timing *) mat[n_] := Table[Random[Complex, {-10 -10I, 1 + 10I}, 5], {i, 1, n,}, {j, 1, n}] Timing[mat[1000];]