In computing, a hardware random number generator is an apparatus that generates random numbers from a physical process.

random number generator

A pseudo-random number generator.

RAND: Rand uses a multiplicative congruential random number generator with period232 to return successive pseudo-random numbers in the range 0 to RAND_MAX.

Return Value: Rand returns the generated pseudo-random number. RANDOM(): Random returns a random number between 0 and (num-1).random(num) is a macro defined in STDLIB.H.

RANDOMIZE(): Randomize initializes the random number generator with a random value. Because randomize is implemented as a macro that calls the time function prototyped in TIME.H, you should include TIME.H when you use this routine

SRAND(): The random number generator is reinitialized by calling srand with an argument value of 1.The generator can be set to a new starting point by calling srand with a given seed number.

Is a set of numbers that look random and will pass most tests of randomness.