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# Category: Matrix

## Plus matrix

Total A + B of two matrices of the same size NxM A and B is a matrix with elements of the same size in the corresponding position by the sum of two elements of each matrix corresponding: (A + B)i,j = Ai,j + With a,j, with 1 ≤ i ≤ N and 1 ≤ j ≤ M. Threads: Enter two matrices have the same size NxM. compute

## The average main diagonal

Square matrix is ​​a matrix of rows and columns of equal. Matrix NxN square matrix called ranks N. AII elements constitute the main diagonal of a square matrix. (Diagonal from left to right, up to down). Threads: Entered into a matrix

## Check symmetric matrix

Square matrix is ​​a matrix of rows and columns of equal. Matrix NxN square matrix called Career N.Ma symmetrical ball is a square matrix with the transposed matrix of it, or AIJ = Aji Recommended Posts: Enter into a square matrix of degree n.

## Matrix transposition

If A is a matrix of n x m in size with values ​​aij in row i, column j, the matrix transpose matrix B = AT m x n size with values: bij = aji Example: Threads: For matrix A n x m size. Find the matrix transpose of the matrix A. Input: The first line contains 2

## Total goods, total column of the matrix

Threads: Enter an integer matrix N x M size. Sum of each row, each column of the matrix. Input: The first line contains 2 n, m separated by spaces. The next n lines each containing m integers separated by spaces. Output:

## Enter matrix production

Threads: Enter an integer matrix N x M size and matrix production out. Input: The first line contains 2 n, m separated by spaces. The next n lines each containing m integers separated by spaces. Output: Matrix of n