Advanced Control Flow

Simulations

To generate a random floating-point number, note that the quantity rand() * 1.0 / RAND_MAX is a random floating-point value between 0 and 1.

The 1.0 ensures that the division is a floating-point number.

double rand_double(double a, double b)
{
   return a + (b - a) * rand() * (1.0 / RAND_MAX);