الشارح للدرس: Power of a Matrix | نجوى
We define the matrix 𝐴 = 1 − 3 2 5 . To calculate matrix 𝐴, we are multiplying the matrix 𝐴 by itself. In other words, we have 𝐴 = 𝐴 × 𝐴 = 1 − 3 2 5 1 − 3 2 5 . As expected, this multiplication is well defined, since we have a 2 × 2 matrix multiplied by a 2 × 2 matrix.