Matrix Multiplication Program in C++

This article guide you for writing a Matrix multiplication Program in C++. We can add, subtract, multiply and divide 2 matrices. To do so, we are taking input from the user for row number, column number, first matrix elements and second matrix elements. Then we are performing multiplication on the matrices entered by the user.

In matrix multiplication first matrix one row element is multiplied by second matrix all column elements.

C++ Program to convert Decimal to Binary.

Let’s see the program of matrix multiplication in C++.

    #include <iostream>  
    using namespace std;  
    int main()  
    {  
    int a[10][10],b[10][10],mul[10][10],r,c,i,j,k;    
    cout<<"enter the number of row=";    
    cin>>r;    
    cout<<"enter the number of column=";    
    cin>>c;    
    cout<<"enter the first matrix element=\n";    
    for(i=0;i<r;i++)    
    {    
    for(j=0;j<c;j++)    
    {    
    cin>>a[i][j];  
    }    
    }    
    cout<<"enter the second matrix element=\n";    
    for(i=0;i<r;i++)    
    {    
    for(j=0;j<c;j++)    
    {    
    cin>>b[i][j];    
    }    
    }    
    cout<<"multiply of the matrix=\n";    
    for(i=0;i<r;i++)    
    {    
    for(j=0;j<c;j++)    
    {    
    mul[i][j]=0;    
    for(k=0;k<c;k++)    
    {    
    mul[i][j]+=a[i][k]*b[k][j];    
    }    
    }    
    }    
    //for printing result    
    for(i=0;i<r;i++)    
    {    
    for(j=0;j<c;j++)    
    {    
    cout<<mul[i][j]<<" ";    
    }    
    cout<<"\n";    
    }    
    return 0;  
    }    

Output:

enter the number of row=3  
enter the number of column=3  
enter the first matrix element= 
1 2 3
1 2 3  
1 2 3       
enter the second matrix element= 
1 1 1  
2 1 2   
3 2 1    
 multiply of the matrix=  
14 9 8      
14 9 8  
14 9 8
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Conclusion:

Hi guys, I can hope that you can know that how to write a Matrix Multiplication Program. If you like this post as well as know something new so share this article in your social media accounts. If you have any doubt related to this post then you ask in comment section.

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