can you multiply a 2x3 and 2x3 matrix

So you can multiply your 2x2 matrix by this 2x3 matrix, and the result will be a 2x3 matrix whose columns are the result of multiplication of matrix by the column of this. matrix @ X.T is. array([[ 2, 4, 6], [-1, -3, -5]]) And transposing back this gives the already given result. So, tl;dr: one-liner answer is (matrix @ X.T).T Question288488: A is a 2x3 matrix and B a 3x2 matrix is A-B defined A is invertible 3x3 matrix B is 3x4 matrix is A to the -1 power B defined A is 3x4 matrix and B is 3x4 matrix is A+B defined I do not understand what is meant my defined thank you Found 2 solutions by stanbon, jim_thompson5910: Technically yes. On paper you can perform column operations. However, it nullifies the validity of the equations represented in the matrix. In other words, it breaks the equality. Say we have a matrix to represent: 3x + 3y = 15 2x + 2y = 10, where x = 2 and y = 3 Performing the operation 2R1 --> R1 (replace row 1 with 2 times row 1) gives us A3x2 matrix and a 2x3 matrix (or a 3x3 matrix and a 4x4 matrix) cannot be added or subtracted together. Webyou need to check the dimensions of the matrices being multiplied. You can only multiply matrices if the number of columns of the first matrix is the same as the number of rows as the second matrix. For example, say you want to multiply a Asingular matrix is a square matrix if its determinant is 0. i.e., a square matrix A is singular if and only if det A = 0. We know that the inverse of a matrix A is found using the formula A-1 = (adj A) / (det A). Here det A (the determinant of A) is in the denominator. We are aware that a fraction is NOT defined if its denominator is 0. Hence A-1 is NOT defined when det A = 0. i.e., the Vay Nhanh Fast Money.

can you multiply a 2x3 and 2x3 matrix