Add an inverse method on the matrix classes based upon determinant expansion by minors.  Presumably, the code could be more optimal, but it would take  effort to be more readable.
Add an inverse method on the matrix classes based upon determinant expansion
by minors.  Presumably, the code could be more optimal, but it would take 
effort to be more readable.

jessebarker/libmatrix,jessebarker/libmatrix