MatrixCalculator.cpp

Maths/Matrix-Calculator.cpp

@@ -0,0 +1,85 @@
+#include<stdio.h>
+#include <iostream.h>
+#include<conio.h>
+
+int main()
+{    clrscr();
+     int arr1[20][20],arr2[10][10];
+     int result[20][20];
+     int m,n;
+     int i,j;
+     // prompts the user to enter the rows and columns of the matrix
+     cout<<" Enter the number of rows (m) : ";
+     cin>>m;
+     cout<<" Enter the number of columns (n) : ";
+     cin>>n;
+     cout<<" \n Enter the elements of the 1st matrix \n ";
+
+     for (i=0; i<m; i++)
+     {
+          for (j=0; j<n; j++)
+          {
+               cout<<" Element "<<i<<" : "<<j<<" --> ";
+               cin>>arr1[i][j];
+          }
+     }
+
+     cout<<"\n Enter the elements of the 2nd matrix : \n ";
+     for (i=0; i<m; i++)
+     {
+          for (j=0; j<n; j++)
+          {
+               cout<<" Element "<<i<<" : "<<j<<" --> ";
+               cin>>arr2[i][j];
+          }
+     }
+
+     //------------ display matrics -----------------------
+
+     cout<<"\n 1st matrix \n ";
+     for (i=0; i<m; i++)
+     {
+          for (j=0; j<n; j++)
+          {
+               cout<<" "<<arr1[i][j];
+          }
+          cout<<"\n";
+     }
+
+     cout<<"\n 2nd matrix \n ";
+     for (i=0; i<m; i++)
+     {
+          for (j=0; j<n;j++)
+          {
+               cout<<" "<<arr2[i][j];
+          }
+          cout<<"\n";
+     }
+    cout<<" \n Resultatn matrix \n";
+    int k=0;
+     // multiplies the two matrices together
+     for(i=0;i< m;i++)
+     {
+          for(j=0;j< n;j++)
+          {
+               result[i][j] = 0;
+          for(k=0;k< m;k++)
+          {
+               result[i][j] = result[i][j] + arr1[i][k] * arr2[k][j];
+          }
+          } // end of j sub loop
+     } // end of i main loop
+
+     // displays the resultant matrix
+
+     for (i=0; i<m; i++)
+     {
+          for (j=0; j<n; j++)
+          {
+               cout<<result[i][j]<<"  ";
+          }
+          cout<<"\n \n";
+     }
+     return 0;
+
+}