9front - general discussion about 9front
 help / color / mirror / Atom feed
From: Steve Simon <steve@quintile.net>
To: 9front@9front.org
Subject: Re: [9front] Quick PRNG question
Date: Tue, 24 Sep 2019 10:53:25 +0100	[thread overview]
Message-ID: <08256730-9364-4F53-A4A4-C5F4CD2A6F8A@quintile.net> (raw)
In-Reply-To: <alpine.LNX.2.00.1909241144280.7981@phi>


i would normally defer to “numerical recipes” in such matters. if you just want a square distribution then xor and a shift register is nice and simple. the book also has a slower algorithm which reshapes this to a gaussian without much effort.

-Steve


> On 24 Sep 2019, at 10:45 am, Julius Schmidt <aiju@phicode.de> wrote:
> 
> Look up xorshift and its variants
> 
> It's about a million times simpler than Mersenne twister and some of the variants are much better at passing statistical tests.
> 
>> On Tue, 24 Sep 2019, Ethan Gardener wrote:
>> 
>> Hi Aiju! I remember some time back you laughed at Mersenne twister PRNG, citing another PRNG as simpler and better.  What was the better PRNG?
>> 



  reply	other threads:[~2019-09-24  9:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-24  7:59 Ethan Gardener
2019-09-24  9:45 ` [9front] " Julius Schmidt
2019-09-24  9:53   ` Steve Simon [this message]
2019-09-28 18:11   ` Ethan Gardener

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=08256730-9364-4F53-A4A4-C5F4CD2A6F8A@quintile.net \
    --to=steve@quintile.net \
    --cc=9front@9front.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).