#include #include #include #include #include void main(void) { double start, end; double lastcos; lastcos = 1.0; start = cputime(); for (int i = 0; i < 100000000; i++) { lastcos = cos(lastcos) + 1.0; } end = cputime(); print("Calculating 100,000,000 cosines took %fs\n", end - start); }