Package math.rng

Pseudo-random number generators

See: Description

Interface Summary

Interface	Description
PseudoRandom	A generator of uniform pseudorandom values.
PseudoRandomStream	Each method that returns a stream produces a stream of values each of which is chosen in the same manner as for a method that returns a single pseudorandomly chosen value.
SplittablePseudoRandom	A generator of uniform pseudorandom values applicable for use in (among other contexts) isolated parallel computations that may generate subtasks.

Class Summary

Class	Description
AbstractRng64	Abstract base class for 64-bit pseudo RNGs.
BitMix	A selection of 64-bit mixing functions for longs and 32-bit mixing functions for ints.
DefaultRng	Factory methods for the default PseudoRandom algorithm which is currently a MersenneTwister64.
Interleaved4Stc64	4 daisy-chained Stc64 generators that are called in round-robin fashion, i.e., first gen_0, then gen_1, then gen_2, then gen_3, then again gen_0 and so on.
Lcg64Xor1024Mix	The L64X1024MixRandom algorithm from JDK 17 which uses a linear congruential generator (LCG) as a first subgenerator and a Xor-based generator (xoroshiro1024) as a second subgenerator and then applies a 64-bit mixing function identified by Doug Lea.
MersenneTwister64	64-bit Mersenne Twister.
Seed	Generates a pseudo-random long seed.
Sfc64	Chris Doty-Humphrey's 256-bit "Small Fast Counting RNG" (sfc64).
SplitMix64	64-bit SplitMix-type pseudo random generator suggested by Guy Steele, Doug Lea, Christine Flood (2014).
SplitMix64Seed	The splitmix64() generator (here only used for seed generation) which is based on Guy Steele, Doug Lea, Christine Flood (2014) and has been included in Java 8 as SplittableRandom (this implementation uses a mixing function which is different from the one used in SplittableRandom.
Stc64	The 256-bit generator Stc64 is Tyge Løvset's improved variation of Sfc64.
XorShift1024Star	1024-bit Xorshift pseudo random generator suggested by George Marsaglia (2003) as studied by Sebastiano Vigna (2016).
XorShift128Plus	128-bit xorshift128+ pseudo random generator suggested by Sebastiano Vigna (2017).
XorShift64Star	64-bit Xorshift* pseudo random generator by George Marsaglia (2003).
XorShiftRot256PlusPlus	256-bit xoshiro256++ pseudo random generator suggested by David Blackman and Sebastiano Vigna (2019).
XorShiftRot256StarStar	256-bit xoshiro256** pseudo random generator suggested by David Blackman and Sebastiano Vigna (2019).

Package math.rng Description

Pseudo-random number generators