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Re: exp function bug [message #7585 is a reply to message #7576]

Thu, 05 December 1996 00:00

Andy Loughe
Messages: 174
Registered: November 1995

Senior Member

Robert Cannon wrote:
>
> Can anyone tell me what is going on here, or if it happens on other
> platforms?
>
> The first time I call exp (-710.72026d0) after starting idl I get:
>
> hera:~> idl
> IDL. Version 4.0.1 (IRIX mipseb).
>
> IDL> print, exp (-710.72026d0)
> 2.8462073e+134
> IDL> print, exp (-710.72026d0)
> 2.1782760e-309
>
> This is on an sgi crimson. I get the impression the same may happen on
> an alpha, but for a different value - it has to be -710.72026d0 on the
> sgi: -710.72025d0 works fine.....

For interest's sake...
This does not happen on a SUN SparcStation running Solaris 2.5

--
Andrew F. Loughe | afl@cdc.noaa.gov
University of Colorado, CIRES | http://cdc.noaa.gov/~afl
Campus Box 449 | phn:(303)492-0707 fax:(303)497-7013
Boulder, CO 80309-0449 | "If you are going to be blue, be bright
blue!"

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[Message index]

		Re: exp function bug By: Peter Mason on Fri, 06 December 1996 00:00
		Re: exp function bug By: davidf on Thu, 05 December 1996 00:00
		Re: exp function bug By: Andy Loughe on Thu, 05 December 1996 00:00

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