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MathGroup Archive 2004

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Re: strange problems with Random

  • To: mathgroup at
  • Subject: [mg47846] Re: strange problems with Random
  • From: Bill Rowe <readnewsciv at>
  • Date: Thu, 29 Apr 2004 00:34:55 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

On 4/27/04 at 4:48 AM, akoz at (Andrzej Kozlowski) wrote:


>In any case, I am sure that using Random[Normal  ] consistently
>gives wrong answers. I looked at the
>Statistics`NormalDistributionPackage` but everything looks O.K. to
>me. I now tend to believe that the problem lies with Random itself,
>that is that  Random called with any parameters or perhaps some
>particular parameters may not be behaving correctly. Random[]
>called with no parameters does not seem to  suffer from any such

I remember seeing a post here to the effect there was a bug in Mathematica's implementation of the subtract with borrow algorithm used to generate pseudo-random reals. Perhaps this bug is having an effect on Random[Normal ]
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