Xref: utzoo comp.unix.ultrix:7433 comp.lang.fortran:5551
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!uunet!dynsim1!litwin!vlr
From: vlr@litwin.com (Vic Rice)
Newsgroups: comp.unix.ultrix,comp.lang.fortran
Subject: How to detect NaN's
Message-ID: <1991May30.204332.16506@litwin.com>
Date: 30 May 91 20:43:32 GMT
Organization: Litwin Process Automation
Lines: 9

I have encountered a problem on a DECStation 5000 using the Mips Fortran
compiler. Some operation I am performing is generating a NaN which then
proceeds to propogate to other dependent variables. Since this is in
a loop, I am not exactly sure where it starts.

How can I test a variable for the presence of a NaN or Infinity ???
-- 
Dr. Victor L. Rice
Litwin Process Automation