Matrices on the Graphing Calculator

Adding and subtracting matrices by hand is easy. Even multiplying a number by a matrix can be done in your head. However, multiplying a matrix by another matrix is quite complicated. After learning how to do it by hand, the Algebra 2 class learned how simple it was to enter it on the TI 84 graphing calculators and let the calculator do the work. We also learned how to find the determinants and inverses.