[Octave-bug-tracker] [bug #34173] Possible bug with multiplification with matrices and "-" sign

[Mikael]

URL:
  <http://savannah.gnu.org/bugs/?34173>

                 Summary: Possible bug with multiplification with matrices and
"-" sign
                 Project: GNU Octave
            Submitted by: mandolin
            Submitted on: Tue 30 Aug 2011 11:03:40 AM GMT
                Category: GUI
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.4.2
        Operating System: GNU/Linux

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Details:

I have found a strange problem. 

I have a big sparse matrix Q  (43750 43750) and a vector x

then 
Y = -Q*x; 

gives the error message:

but with 
Y = -(Q*x); 
or 
Z = Q*x;
Y = -Z;

works fine.. should give same results.

//Mandolin




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