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From: | John W. Eaton |
Subject: | Re: Possible loss of accuracy |
Date: | Wed, 15 May 2013 13:26:30 -0400 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:10.0.11) Gecko/20121122 Icedove/10.0.11 |
On 05/15/2013 01:11 PM, Sergei Steshenko wrote:
IIRC, on x86-64 80 bit FP registers are _not_ used. Is you machine by any chance a 64 bit one ?
Yes. Also, Octave doesn't do the kinds of expression optimizations that are typically done by a Fortran compiler, so each subexpression is computed and the result is stored to memory. So that could explain differences as well.
jwe
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