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Author	SHA1	Message	Date
Bill Currie	91a686d1f5	[util] Add mtwist float random number functions mtwist_rand_0_1 produces numbers in the range [0, 1) and mtwist_rand_m1_1 produces numbers in the range (-1, 1). The numbers will not be denormal, so the distribution should be fairly uniform (as much as Mersenne Twister itself is), but this needs proper testing. 0 is included for the mtwist_rand_0_1 as it seems useful, but -1 is not included in mtwist_rand_m1_1 in order to keep the extremes of the distribution balanced around 0.	2021-12-24 06:45:13 +09:00
Bill Currie	5188644e75	Implement the Mersenne Twister PRNG. This gives QF a consistent qualilty PRNG on all platforms. The implementation is slightly different from the standard, but gives the same results for the same speed (details in mersenne.c).	2013-01-21 20:05:16 +09:00

Author

SHA1

Message

Date

Bill Currie

91a686d1f5

[util] Add mtwist float random number functions

mtwist_rand_0_1 produces numbers in the range [0, 1) and
mtwist_rand_m1_1 produces numbers in the range (-1, 1). The numbers will
not be denormal, so the distribution should be fairly uniform (as much
as Mersenne Twister itself is), but this needs proper testing.

0 is included for the mtwist_rand_0_1 as it seems useful, but -1 is not
included in mtwist_rand_m1_1 in order to keep the extremes of the
distribution balanced around 0.

2021-12-24 06:45:13 +09:00

Bill Currie

5188644e75

Implement the Mersenne Twister PRNG.

This gives QF a consistent qualilty PRNG on all platforms. The
implementation is slightly different from the standard, but gives the same
results for the same speed (details in mersenne.c).

2013-01-21 20:05:16 +09:00

2 commits