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[Octave-bug-tracker] [bug #42583] log2() returns inaccurate result for m


From: John W. Eaton
Subject: [Octave-bug-tracker] [bug #42583] log2() returns inaccurate result for many integer powers of 2, unlike Matlab
Date: Thu, 19 Jun 2014 17:52:36 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0 Iceweasel/29.0.1

Follow-up Comment #8, bug #42583 (project octave):

Hmm, I just looked at and ran the bootstrap script and it looks like we aren't
using the gnulib log2 or log2-ieee module.  Since the latter depends on log2,
I think it is best to use the log2-ieee module.  I'm looking at making that
change now.

Reporting the problem for the Cygwin library would be OK, but since this is
known due to the fixes in gnulib, I suspect it would just be a duplicate
report.

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