FDIV bug in Pentium chips!!!

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Article #2070

#2070

From: Kurt R Glaesemann
Date: Fri, 02 Dec 1994 20:58

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In article <3bl9af$jlp@xap.xyplex.com>,  <dlaskey@xyplex.com> wrote:
>By the way...If you do any serious number crunching and use 256 in your 
>calculations such as cell A1 (4195835 * 256)
>                     cell A2 (3145727 / 256)
>		     cell A3  =a1/a2
>You are boned.  The Pentium will give the result 87407.92362
>Acual answer is 				 87413.2569
>
>Hmmmmmm The error is to the LEFT of the decimal point.  These Chips Suck!

You really didn't need more than three significant figures  ;-)

>Have fun doing taxes...remember calculations done on a Pentium are still your 
>responsibility.  You will be liable for all interest and penalties!

I wonder if water comes out linear using quantum mechanics programs on
pentiums.  :-( 


-- 
kurtg@iastate.edu

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From: kurtg@iastate.edu (Kurt R Glaesemann)
Newsgroups: comp.sys.intel,bionet.molec-model,sci.chem
Subject: FDIV bug in Pentium chips!!!
Date: 2 Dec 1994 20:58:55 GMT
Organization: Iowa State University, Ames, Iowa (USA)
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