Mathematics, Data Science, Algebra, Numerical Analysis, University At Buffalo.
matrix and B be a p x q dimension matrix. In this case, AB is defined when n = p giving a m x q dimension matrix and BA is defined when m = q giving a p x n matrix. AB = C implies aᵢₖbₖⱼ = cᵢⱼ. 4. Powers Aᵖ = A x A x A … (p times). 5. Trace Trace of a matrix A is defined as the sum of all the