Ridge 3200 Floating Point Underflow Bug

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#10

From: Bruce P Johnston
Date: Tue, 05 Jun 1990 21:40

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Has anyone experienced floating point underflow problems on
a Ridge 3200 system?

We are having problems working with very small numbers near
the lower limit of double precision (ie ~1.0d-308).  Instead of 
underflowing to zero (0.0) as they should, underflowed numbers
"wrap around" to very large numbers (~1.0d+308).

I would appreciate hearing from anyone who has experienced this
and might have a fix (other than scaling or software checks) for
this problem.

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Message-ID: <13279@wpi.wpi.edu>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!bu.edu!m2c!wpi!bruce
From: bruce@wpi.wpi.edu (Bruce P Johnston)
Newsgroups: comp.sys.ridge,comp.bugs.sys5
Subject: Ridge 3200 Floating Point Underflow Bug
Keywords: Ridge
Message-ID: <13279@wpi.wpi.edu>
Date: 5 Jun 90 21:40:09 GMT
Distribution: usa
Organization: Worcester Polytechnic Institute, Worcester, Mass.
Lines: 11