SEARCH MATHEMATICA 8 DOCUMENTATION

THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.

Mathematica > Random Number Generation >

Built-in Mathematica Symbol

SeedRandom

SeedRandom[n]
resets the pseudorandom generator, using n as a seed.

SeedRandom[]
resets the generator, using as a seed the time of day and certain attributes of the current Mathematica session.

You can use SeedRandom[n] to make sure you get the same sequence of pseudorandom numbers on different occasions.

SeedRandom[Method->"method"] specifies what method should be used for the pseudorandom generator.

SeedRandom[n, Method->"method"] resets the generator, specifying both a seed and the method to use.

SeedRandom[n] affects only the current generator; SeedRandom[n, Method->All] affects all generators.

	"Congruential"	linear congruential generator (low-quality randomness)
	"ExtendedCA"	extended cellular automaton generator (default)
	"Legacy"	default generators from before Mathematica 6.0
	"MersenneTwister"	Mersenne twister shift register generator
	"MKL"	Intel MKL generator (Intel-based systems)
	"Rule30CA"	Wolfram Rule 30 generator