The return from createTimespan(days, hours, minutes, seconds) is a double numeric value representing a number of days. For example, createTimespan(2, 6, 0, 0) is 2.25, meaning two and a quarter days. The resolution of the function is one second, w...

Everybody knows the standard technique for testing whether a (positive, whole) number is odd or even; just divide by two and see if the remainder is zero. The mathematic name for this function for the modulo operation. There is an another way to p...