% FUNCTION CHRONO_STOP(CHRONO)

function chrono_stop(chrono)

finish_time = 1e5 * now;
elapsed_time = finish_time - chrono.start_time;
speed = chrono.n / elapsed_time;

s = '%d iterations in %.3f sec: %.3f iterations per sec';

disp(sprintf(s, chrono.n, elapsed_time, speed));