[Octave-bug-tracker] [bug #35761] Probably float64-representation bug.

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?35761>

                 Summary: Probably float64-representation bug.
                 Project: GNU Octave
            Submitted by: None
            Submitted on: tor  8 mar 2012 17.13.25
                Category: Plotting with gnuplot
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Anders
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.4.3
        Operating System: GNU/Linux

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Details:


octave:62> figure(1); clf; surf(Z-.8);
octave:63> figure(1); clf; surf(Z);

gnuplot> splot "-" binary format='%float64' record=19x19 using
($1):($2):($3):($4) title "" with pm3d linestyle 1 ;
                                                                              
                                   ^
         line 0: Can't plot with an empty cb range!
 

octave:73> sum(sum(Z)) - .8*(size(Z)(1,1)*size(Z)(1,2))
ans =  5.68434188608080E-14
octave:74> sum(sum(Z-.8))
ans =  2.95319324550292E-14
octave:75> size(Z)
ans =

   1.90000000000000E+01   1.90000000000000E+01





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File Attachments:


-------------------------------------------------------
Date: tor  8 mar 2012 17.13.25  Name: KON.m  Size: 3 kB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=25298>
-------------------------------------------------------
Date: tor  8 mar 2012 17.13.25  Name: ROTATION.m  Size: 503 B   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=25299>

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  <http://savannah.gnu.org/bugs/?35761>

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