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Re: exp function bug [message #7576 is a reply to message #7574]

Thu, 05 December 1996 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Andy Loughe <afl@cdc.noaa.gov> wrote:

> 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

Doesn't happen on a Mac either.

David

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David Fanning, Ph.D.
Fanning Software Consulting
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E-Mail: davidf@dfanning.com
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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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