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Re: wierd random number behavior


From: Benedikt Stefansson
Subject: Re: wierd random number behavior
Date: Tue, 20 Apr 1999 18:10:36 +0200

Marcus G. Daniels wrote:
> 
> >>>>> "B" == Benedikt Stefansson <address@hidden> writes:
> 
> B> although it
> B> is harder to explain the overrun for randNum. However it could be a
> B> strange byproduct of the variable threshold going to infinity.
> 
> Maybe... The easiest way to find out if there is a weird side effect
> is to remove the threshold computation.  On some versions of Linux,
> exp is an assembly inline and so a compiler bug might screw up the FPU
> state somehow.
> 
> B> On Linux I've had problems when dividing a floating point value by
> B> an integer (i.e using 4 instead of 4.0).
> 
> This should work.  [section 2.7 in the C reference manual]
> 
> B> The "-moisture" is not proper C and should be written "-1.0*moisture".
> 
> This should also work.  [section 7.2 in Appendix A in the C reference manual]
> 

I guess the RTFM principle also holds for C, I just learned this stuff
by doing rather than studying and hence stand corrected. 


Regards,
Benedikt
-- 
---
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Dep. of Economics, Univ. of Trento, Via Inama 1, 38100 Trento, ITALY
Office: +39 0461 882246 Mobile: +39 0347 0415721 Fax: +39 0461 882222

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