Linear Algebra, Spreadsheets.
non-zero element of inv(M) will be also situated at row j and column i and will have value −mⱼᵢ. From the row operation perspective, this makes intuitive sense because if mⱼᵢ times row i is added to row j, the only thing one needs to do to get back row j is to add −mⱼᵢ times row i to the