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NR_MACHAR hangs under Win95 [message #8366] Sun, 02 March 1997 00:00
brian.jackel is currently offline  brian.jackel
Messages: 23
Registered: May 1996
Junior Member
Greetings

While using the library routine CURVEFIT, IDL kept hanging
(IDL 4.0.1 running under Windows95). Eventually I traced the
problem to the following line

res = nr_machar(DOUBLE=double)

which gets called only if numerical derivatives are required.

Presumably this does the Numerical Recipes calculations for
machine constants, but since it's not mentioned in the on-line
help (or the hardcopy documentation) it's tough to be sure.

Can anyone reproduce this problem on any other platform, or
confirm it under Windows95?

Brian Jackel

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