C program for addition of two matrices? - Answers

I don't know the code, so I can't give it to you. But the algorithm is simple. Matrices are usually stored as 2 dimensional arrays. Say M and N. Then you make a loop, any loop, that goes through each row, during each loop, another loop will go over every single column (so row 1, col 1, then row 1, col 2, then etc.) Each time, the loop goes into row i and column j, add the entries of that row and column from M and N, (or M i,j + N i,j) and let it be the i,j's entry of the sum matrix. Do the code yourself.