Hi Travis,
This was my first sage contribution ! In src/sage/matrix/matrix_space.py
there is a function:
test_trivial_matrices_inverse
Which is supposed to be runs on all various implementation of matrix. The doc
says:
The methods determinant, is_invertible, rank and inverse are checked for
- the 0x0 empty identity matrix
- the 0x3 and 3x0 matrices
- the 1x1 null matrix [0]
- the 1x1 identity matrix [1]
This was done before categories and there is the following comment:
TODO: must be adapted to category check framework when ready (see trac
\#5274).
which has been forgotten so far... This should clearly be moved to the generic
test-suite for matrix spaces.
Cheers,
Florent
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