Integer Matrices gives wrong answers about basiclinearalgebra

[insalt-glitch]

The problem is that the LUDecompose does operations on the given type. In your case, this is the integer type. Consequently, the devision here:

BasicLinearAlgebra/impl/NotSoBasicLinearAlgebra.h

Line 74 in b302d92

row_scale[i] = 1.0 / largest_elem;

will probably produce a wrong result. One potential fix could be to check for integer types and perform the determinant calculation on floats, then convert the matrix back to integers. However, in that case, I think there is no guarantee that there won't be rounding errors.