BEGIN { y = 8 x = 1 while (x < 256) { print "arctan", y/x, atan2(y , x) x += x } print "" pi8 = atan2(1, 1) / 2 arg = 0 for (i = 0; i <= 8; i++) { print "cos sin", arg, cos(arg), sin(arg) arg += pi8 } print "" for (i = -5; i<= 5; i++) { print "exp log", i, exp(i), log(exp(i)) } }