[Dune] Notification from Dune

[Flyspray]

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A new Flyspray task has been opened.  Details are below.

User who did this: - Oliver Sander (sander)

Attached to Project - Dune
Summary - Inversion of FieldMatrix is buggy
Task Type - Bug Report
Category - Common
Status - New
Assigned To - 
Operating System - All
Severity - High
Priority - Normal
Reported Version - SVN
Due in Version - 1.0
Due Date - Undecided
Details - Consider the following test program:

#include "config.h"

#include <dune/common/fmatrix.hh>

int main()
{
    Dune::FieldMatrix<double,3,3> A(0);

    A[0][1] = 1;
    A[1][0] = 1;
    A[2][2] = 1;

    std::cout << "A:" << std::endl << A << std::endl;

    A.invert();

    std::cout << "A inverse:" << std::endl << A << std::endl;

} 

And here is the corresponding output:

A:
0 1 0
1 0 0
0 0 1

A inverse:
1 0 0
0 1 0
0 0 1

Not quite correct :-)

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http://hal.iwr.uni-heidelberg.de/flyspray/?do=details&id=223

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