The matrix is the same size of two matrices, we can define the sum or sum A + B is the matrix dimensions m imes n that is calculated by adding the corresponding position for members who have. That is,
A matrix of the same size matrix. We can define the sum or the sum A + B is a matrix with m times n was calculated by adding members to a position that is unmatched.
A matrix with the same size of two matrices, we can define the sum or sums A B as matrices m. Times n calculated by adding members with the position match. Namely.