Write a menu driven program to perform following: a) Input a matrix b) Display matrix c) Add two matrix d) Multiply two matrixes e) Transpose a matrix

 



#include <iostream>
using namespace std;
class menu
{
private:
    int a[10][10];
    int b[10][10],sum[10][10];
    int i, j, n;

public:
    void inputmatrix();
    void displaymatrix();
    void addmatrix();
    void mulmatrix();
    void transposematrix();
};

void menu ::inputmatrix()
{
    cout << "enter the size of matrix : " << endl;
    cin >> n;
    cout << "enter the elements of the first matrix : " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cin >> a[i][j];
        }
    }

    cout << "enter the elements of the second matrix : " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cin >> b[i][j];
        }
    }
}

void menu ::displaymatrix()
{
    inputmatrix();

    cout << "yr first matrix is : " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << " " << a[i][j];
        }
        cout << " " << endl;
    }

    cout << "yr second matrix is : " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << " " << b[i][j];
        }
        cout << " " << endl;
    }
}

void menu ::addmatrix()
{
    inputmatrix();

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            sum[i][j] = a[i][j] + b[i][j];
        }
    }

    cout << " the sum of two matrix is :" << endl;

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << " " << sum[i][j];
        }
        cout << " " << endl;
    }
}

void menu ::mulmatrix()
{
    inputmatrix();
    int mul[n][n], k, c[i][j];
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            sum[i][j] = 0;
            for (k = 0; k < n; k++)
            {
                sum[i][j] = sum[i][j] + a[i][k] * b[k][j];
                c[i][j] = sum[i][j];
            }
        }
    }

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << " " << c[i][j];
        }
        cout << " " << endl;
    }
}

void menu ::transposematrix()
{
    cout << " enter the size of a matrix :" << endl;
    cin >> n;
    cout << "enter the elements of matrix :" << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cin >> a[i][j];
        }
    }

    cout << "yr matrix is : " << endl;
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << " " << a[i][j];
        }
        cout << " " << endl;
    }

    cout<<"the transpose of your matrix is :"<<endl;

    for (i = 0; i < n; i++)
    {
        for (j = 0; j < n; j++)
        {
            cout << " " <<a[j][i];
        }
        cout << " " << endl;
    }
}

int main()
{
    menu d;
    int number;
    cout << "choose a option :" << endl;
    cout << "1. input a matrix \n2. display two matrix \n3. add two matrix \n4. multiply two matrix \n5. transpose a matrix " << endl;
    cin >> number;
    switch (number)
    {
    case 1:
        d.inputmatrix();
        break;
    case 2:
        d.displaymatrix();
        break;
    case 3:
        d.addmatrix();
        break;
    case 4:
        d.mulmatrix();
        break;
    case 5:
        d.transposematrix();
        break;

    default:
        break;
    }
}

output :

choose a option : 1. input a matrix 2. display two matrix 3. add two matrix 4. multiply two matrix 5. transpose a matrix 4 enter the size of matrix : 2 enter the elements of the first matrix : 1 2 1 2 enter the elements of the second matrix : 2 1 2 1 6 3 6 3

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