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exp function bug [message #7587]

Thu, 05 December 1996 00:00

Robert Cannon
Messages: 5
Registered: February 1996

Junior Member

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.....

robert

Neuroscience Research Group Tel: (0)1703 594286
School of Biologial Sciences Fax: (0)1703 594319
Bassett Crescent East rcc@hera.neuro.soton.ac.uk
Southampton SO16 7PX

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[Message index]

		exp function bug By: Robert Cannon on Thu, 05 December 1996 00:00
		Re: exp function bug By: David R. Klassen on Tue, 10 December 1996 00:00

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