Hi there,
How do I make submatrices (or minors, or block submatrices) in SAGE? I
have a 5x5 matrix
{{{
[ 0 1 0 0 0]
[ 0 0 0 0 1]
[ 0 0 0 1 0]
[ 5/3 -2 -1 2/3 5/3]
[-17/3 1 4 4/3 1/3]
}}}
and I would like to extract from it the first block 2x2 submatrix, ie
[0 1]
[0 0]
Any ideas on how to do this?
didier
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