Add Two Matrix

by · June 9, 2020

“Add Two Matrix” is a basic operation which can be applied over two or more matrices. Here, we have given two matrices of dimension N*M and our task is to add the following matrices and store the result in resultant matrix.

CONDITION: The dimensions of the matrices to be added must be same. Otherwise, we cannot add two matrices.

Example:

Number of rows = 3

Number of columns = 3

111
222
333
Matrix 1
444
555
666
Matrix 2
555
777
999
Resultant Matrix

C++ Program to add two matrix is as follows:

/* Program to add two matrix */
#include<bits/stdc++.h>  
using namespace std;  
int main()  
 {  
    int N,M;  
    // Scan Dimensions of the matrix
    cout<<"Enter Row Size and Column Size of Matrix:\n";
    cin>>N>>M;  
      
    int matrix1[N][M];  
    int matrix2[N][M];  
    int result[N][M];  
      
    // Scan Matrix1 Elements  
    cout<<"Enter the Elements of First Matrix:\n";
    for(int i = 0 ; i < N ; i++)  
    for(int j = 0 ; j < M ; j++)  
    cin>>matrix1[i][j];  
      
    // Scan Matrix2 Elements  
    cout<<"Enter the Elements of Second Matrix:\n";
    for(int i = 0 ; i < N ; i++)  
    for(int j = 0 ; j < M ; j++)  
    cin>>matrix2[i][j];  
      
    // Adding matrices
    for(int i = 0 ; i < N ; i++)  
    for(int j = 0 ; j < M ; j++)  
    result[i][j] = matrix1[i][j]+matrix2[i][j];  
      
    //Print Resultant matrix 
    cout<<"The Resultant matrix is:\n";
    for(int i = 0 ; i < N ; i++)  
    {  
        for(int j = 0 ; j < M ; j++)  
        {  
            cout<<result[i][j]<<" ";  
        }  
        cout<<endl;  
    }  
}  


OUTPUT:
Enter Row Size and Column Size of Matrix:
3 3
Enter the Elements of First Matrix:
1 2 3
1 2 3
1 2 3
Enter the Elements of Second Matrix:
1 2 3
1 2 3
1 2 3
The Resultant matrix is:
2 4 6 
2 4 6 
2 4 6

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