# InnerMatrixQuotientFieldFunctions(R, Row, Col, M, QF, Row2, Col2, M2)¶

inverse(m) returns the inverse of the matrix m. If the matrix is not invertible, “failed” is returned. Error: if the matrix is not square. Note: the result will have entries in the quotient field.
nullSpace(m) returns a basis for the null space of the matrix m.
rowEchelon(m) returns the row echelon form of the matrix m. the result will have entries in the quotient field.