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[Octave-bug-tracker] [bug #43741] Numerical error in mxe-octave GUI vers


From: Avinoam Kalma
Subject: [Octave-bug-tracker] [bug #43741] Numerical error in mxe-octave GUI version
Date: Tue, 02 Dec 2014 19:28:55 +0000
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36

URL:
  <http://savannah.gnu.org/bugs/?43741>

                 Summary: Numerical error in mxe-octave GUI version
                 Project: GNU Octave
            Submitted by: avinoam
            Submitted on: Tue 02 Dec 2014 07:28:54 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: Avinoam
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.2
        Operating System: Microsoft Windows

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Details:


In GNU Octave Version 3.8.2, using windows unofficial version
(mxe-octave)

in octave-cli version:


octave:4> 10^(-2) - 1./10^2
ans = 0


while in octave-gui version


>> 10^(-2) - 1./10^2
ans =   1.7347e-018


This affects some routines, for example chop (bug 43734
<https://savannah.gnu.org/bugs/?43734>).

This numerical error does not appear in my linux version (Ubuntu).

Avinoam




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Reply to this item at:

  <http://savannah.gnu.org/bugs/?43741>

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