## Thursday, 17 January 2013

### Addition Of Two Matrices Using DMA [C Source Code]

Here is the source code in C that makes use of DMA function malloc() to dynamically allocate the memory for matrices and find their sum.

Below is a sample run along with the compilation step.

#include <stdio.h> #include <stdlib.h> int main() { int **A, **B, **C, m, n, p, q, i, j; printf("Enter the size of matrix A: "); scanf("%d %d", &m, &n); printf("Enter the size of matrix B: "); scanf("%d %d", &p, &q); if (m == p && n == q) { A = malloc(m * sizeof(int)); B = malloc(m * sizeof(int)); C = malloc(m * sizeof(int)); for (i = 0; i < m; i++) { A[i] = malloc(n * sizeof(int)); B[i] = malloc(n * sizeof(int)); C[i] = malloc(n * sizeof(int)); } printf("Enter the matrix A:\n\n"); for (i = 0; i < m; i++) { for (j = 0; j < n; j++) { scanf("%d", &A[i][j]); } } printf("Enter the matrix B:\n\n"); for (i = 0; i < m; i++) { for (j = 0; j < n; j++) { scanf("%d", &B[i][j]); } } for (i = 0; i < m; i++) { for (j = 0; j < n; j++) { C[i][j] = A[i][j] + B[i][j]; } } printf("The addition of two matrices is: \n\n"); for (i = 0; i < n; i++) { for (j = 0; j < m; j++) { printf("%d ", C[i][j]); } printf("\n"); } for (i = 0; i < m; i++) { free(A[i]); free(B[i]); free(C[i]); } free(A); free(B); free(C); } else { printf("Matrix addition is not possible for given size\n\n"); } return 0; }

Below is a sample run along with the compilation step.

samar@samar-Techgaun:~$ gcc -Wall -o matrix_addn matrix_addn.c samar@samar-Techgaun:~$ ./matrix_addn Enter the size of matrix A: 2 2 Enter the size of matrix B: 2 2 Enter the matrix A: 1 2 3 4 Enter the matrix B: 4 3 2 1 The addition of two matrices is: 5 5 5 5

Labels:
beginner,
c,
C/C++,
programming

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Addition Of Two Matrices Using DMA [C Source Code]

2013-01-17T08:22:00+05:45

Cool Samar

beginner|c|C/C++|programming|

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