Square of a two-by-two matrix
- Przemysław Kajetanowicz
This simple illustration enables you to play with the squares of various two-by-two matrices. Here are two simple problems that you might wish to solve and then to confirm experimentally by means of this illustration. 1. Determine all the matrices of order 2 such that (the identity matrix). 2. Determine all the matrices of order 2 such that is the zero matrix.