[GAP Forum] SolutionMat

[Nasira Sindhu]

Hi,

is the result of SolutionMat(m, vec) always a trivial solution, when the vector vec is a null vector?
I tried to calculate the following form of matrix:

m:= [[0,2,-3,0],[3,4,0,-3],[-2,0,-4,2],[0,-2,3,0]];

with the vector:

v:= [0,0,0,0];

SolutionMat(m, v) gives me always a null-vector back.
But TriangulizeMat(m) shows me that there are more then the trivial soluiton [0,0,0,0].
With TriangulizeMat I get the follwing solution:
[1,0,2,-1,0], [0,1,-3/2,0,0],[0,0,0,0,0],[0,0,0,0,0]

best regards,
Nasira

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