.. _matrixHints: Hints for Matrix Homework Assignment ------------------------------------- #. Assign a variable name to each matrix and use the ``*`` operator in MATLAB to multiply. See :ref:`matmult`. #. a) See :ref:`determinant` b) See :ref:`invertTest`, either the determinant ``det()`` function or the ``rank()`` can find if a matrix is singular or full rank. The ``inv()`` function computes the inverse of a matrix. #. a) See :ref:`systemEq` for an example to putting a system of equations into matrix form. b) See the example in :ref:`when`. c) See :ref:`mat-left-divide`.