![]() ![]() This means that an entry of a 2,4 would refer to the number in the second row of the fourth column. Say that A has entries a n,m, where n denotes the number of the row, and m denotes the column. Let's see the formula for array multiplication to see why it is so. Even worse, if we have a matrix A and a matrix B, then in general, the matrix product A * B is different from B * A (we say that multiplying matrices is not commutative). There are, however, a few matrix multiplication rules that we must follow, and, unfortunately, matrix product may not be as intuitive as regular number product.įirst of all, we can't multiply any pair of matrices.
0 Comments
Leave a Reply. |