L6. Random number generation

Functions
function	genrand_int31 ()
	Unsigned 31 bit integer random number (Mersenne Twister)
function	genrand_int32 ()
	32 bit integer random number (Mersenne Twister)
function	genrand_res53 ()
	53 bit real random number in [0, 1) (Mersenne Twister)
function	init_genrand (s::Integer)
	Initialization with seed for random number generator (Mersenne Twister)

Detailed Description

This is the group of L6. Random number generation.