Question

write a c++ program to display 2-dimensional matrix using function?

Answer 1

Answer:

he user is asked to enter elements of two matrices (of order r*c).

Then, the program adds these two matrices, saves it in another matrix (two-dimensional array) and displays it on the screen.

Example: Add Two Matrices using Multi-dimensional Arrays

#include <iostream>

using namespace std;

int main()

{

int r, c, a[100][100], b[100][100], sum[100][100], i, j;

cout << "Enter number of rows (between 1 and 100): ";

cin >> r;

cout << "Enter number of columns (between 1 and 100): ";

cin >> c;

cout << endl << "Enter elements of 1st matrix: " << endl;

// Storing elements of first matrix entered by user.

for(i = 0; i < r; ++i)

for(j = 0; j < c; ++j)

{

cout << "Enter element a" << i + 1 << j + 1 << " : ";

cin >> a[i][j];

}

// Storing elements of second matrix entered by user.

cout << endl << "Enter elements of 2nd matrix: " << endl;

for(i = 0; i < r; ++i)

for(j = 0; j < c; ++j)

{

cout << "Enter element b" << i + 1 << j + 1 << " : ";

cin >> b[i][j];

}

// Adding Two matrices

for(i = 0; i < r; ++i)

for(j = 0; j < c; ++j)

sum[i][j] = a[i][j] + b[i][j];

// Displaying the resultant sum matrix.

cout << endl << "Sum of two matrix is: " << endl;

for(i = 0; i < r; ++i)

for(j = 0; j < c; ++j)

{

cout << sum[i][j] << " ";

if(j == c - 1)

cout << endl;

}

return 0;

}

Output

Enter number of rows (between 1 and 100): 2

Enter number of columns (between 1 and 100): 2

Enter elements of 1st matrix:

Enter element a11: -4

Enter element a12: 5

Enter element a21: 6

Enter element a22: 8

Enter elements of 2nd matrix:

Enter element b11: 3

Enter element b12: -9

Enter element b21: 7

Enter element b22: 2

Sum of two matrix is:

-1 -4

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