From: gautier_niouzes@hotmail.com
Subject: Simple hash or pseudo-random function
Date: Mon, 16 Jul 2018 01:20:27 -0700 (PDT)
Date: 2018-07-16T01:20:27-07:00 [thread overview]
Message-ID: <5a66cd8a-e11d-4a59-bce1-8cc693b4160a@googlegroups.com> (raw)
Hello,
Does someone have a function that would take an integer (range 0 .. 2**63), not uniformily distributed (it's a code with some meaning) and return a number that is pseudo-random, uniformily distributed (could be a floating-point number or an integer in a range of minimum length 365) ?
The difficulty for me is to find a very simple function. There are many that are for hashing strings, but they could be too time-consuming: it's for a number-crunching program where this function will be called billions of times, so I'm looking for something really simple (and fast :-) ).
TIA
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next reply other threads:[~2018-07-16 8:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-16 8:20 gautier_niouzes [this message]
2018-07-16 13:34 ` Simple hash or pseudo-random function Shark8
2018-07-17 4:44 ` robin.vowels
2018-07-16 14:52 ` Marius Amado-Alves
2018-07-16 20:59 ` gautier_niouzes
2018-07-16 17:17 ` Jeffrey R. Carter
2018-07-16 21:14 ` gautier_niouzes
2018-07-17 6:09 ` Jeffrey R. Carter
2018-07-18 13:38 ` gautier_niouzes
2018-08-01 9:08 ` gautier_niouzes
2018-07-17 0:40 ` Dan'l Miller
2018-07-17 6:44 ` Paul Rubin
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