MATRIX SUBTRACTION.CPP SOURCE CODE

#include "calculator.h"
#include <iostream>
using namespace std;
#include <math.h>
#include <cstdlib>
void ScientificCalculator::matrix_addition()
{
    int r,c,a[100][100],b[100][100],sub[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];
       }

/*Subtracting Two matrices */

   for(i=0;i<r;++i)
       for(j=0;j<c;++j)
           sub[i][j]=a[i][j]-b[i][j];

/* Displaying the resultant subtraction of matrix. */

    cout << endl << "Subtraction of two matrix is: " << endl;
    for(i=0;i<r;++i)
       for(j=0;j<c;++j)
       {
           cout << sub[i][j] << "  ";
           if(j==c-1)
               cout << endl;
       }
}