[Maxima-discuss] Matrix inversion with detout = true?

[Viktor T. T. <vt...@vt...>]

Dear Folks,

A bug report in cmetric made me notice that something is badly mess up with
matrix inversion when detout is set to true:

(%i1) ident(4)^^(-1);
                                [ 1  0  0  0 ]
                                [            ]
                                [ 0  1  0  0 ]
(%o1)                           [            ]
                                [ 0  0  1  0 ]
                                [            ]
                                [ 0  0  0  1 ]
(%i2) detout:true;
(%o2)                                true
(%i3) ident(4)^^(-1);
(%o3)                      [0, 1, 0, 0] [1, 0, 0, 0]


Not sure what happened here; the code works fine in 5.27.


Viktor Toth