Pagi hari ini waktu bersih – bersih PC saya menemukan arsip lama dari kuliah C++ dulu, salah satunya adalah operasi perhitungan pada matrix. Langsung terbersit “share aja, siapa tahu membantu jiwa – jiwa yang tersesat” dan akhirnya saya share dengan posting ini.

1.Penjumlahan Matrix :

#include<iostream.h>
#include <conio.h>
#include <iomanip.h>
int i, j, baris, kolom, m1[10][10], m2[10][10], hasil[10][10];
void main()
{
  clrscr();
  cout << "Operasi Penjumlahan Matrix\n";
  do
  {
   cout << "Jumlah Baris = "; cin>>baris;
   cout << "Jumlah Kolom = "; cin>>kolom;
  }
  while((baris>10)||(kolom>10));
/*  do
  while(kolom>10);*/
  cout << "\nMatrix A" << endl;
  for(i=0;i<baris;i++)
   for(j=0;j<kolom;j++)
    {
     cout <<"data [" << i << "," << j << "] = ";
     cin>>m1[i][j];
    }
  cout << "\nMatrix B" << endl;
  for(i=0;i<baris;i++)
   for(j=0;j<kolom;j++)
    {
     cout <<"data [" << i << "," << j << "] = ";
     cin>>m2[i][j];
    }
  for(i=0; i<baris;i++)
    for(j=0; j<kolom; j++)
      hasil[i][j] = m1[i][j] + m2[i][j];
  cout << "\nHasilnya..." << endl;
  cout << "Matrix A  +  Matrix B  =  Matrix C";
  for(i=0; i< baris; i++)
   {
    cout<<'\n';
    for(j=0; j<kolom; j++)
     cout << setw(4) << m1[i][j];
     cout << "     ";
    for(j=0; j<kolom; j++)
     cout << setw(4) << m2[i][j];
     cout << "     ";
    for(j=0; j<kolom; j++)
     cout << setw(4) << hasil[i][j];
    cout << endl;
   }
  getch();
}

2.Pengurangan Matrix :

#include<iostream.h>
#include <conio.h>
#include <iomanip.h>
int i, j, baris, kolom, m1[10][10], m2[10][10], hasil[10][10];
void main()
{
  clrscr();
  cout << "Operasi Pengurangan Matrix\n";
  do
  {
   cout << "Jumlah Baris = "; cin>>baris;
   cout << "Jumlah Kolom = "; cin>>kolom;
  }
  while((baris>10)||(kolom>10));
/*  do
  while(kolom>10);*/
  cout << "\nMatrix A" << endl;
  for(i=0;i<baris;i++)
   for(j=0;j<kolom;j++)
    {
     cout <<"data [" << i << "," << j << "] = ";
     cin>>m1[i][j];
    }
  cout << "\nMatrix B" << endl;
  for(i=0;i<baris;i++)
   for(j=0;j<kolom;j++)
    {
     cout <<"data [" << i << "," << j << "] = ";
     cin>>m2[i][j];
    }
  for(i=0; i<baris;i++)
    for(j=0; j<kolom; j++)
      hasil[i][j] = m1[i][j] - m2[i][j];
  cout << "\nHasilnya..." << endl;
  cout << "Matrix A  -  Matrix B  =  Matrix C";
  for(i=0; i< baris; i++)
   {
    cout<<'\n';
    for(j=0; j<kolom; j++)
     cout << setw(4) << m1[i][j];
     cout << "     ";
    for(j=0; j<kolom; j++)
     cout << setw(4) << m2[i][j];
     cout << "     ";
    for(j=0; j<kolom; j++)
     cout << setw(4) << hasil[i][j];
    cout << endl;
   }
  getch();
}

3.Perkalian Matrix :

#include<iostream.h>
#include <conio.h>
#include <iomanip.h>
int i, j, k, baris, kolom, m1[10][10], m2[10][10], hasil[10][10];
void main()
{
  clrscr();
  cout << "Operasi perkalian Matrix\n";
  do
  {
   cout << "Jumlah Baris = "; cin>>baris;
   cout << "Jumlah Kolom = "; cin>>kolom;
  }
  while((baris>10)||(kolom>10));
/*  do
  while(kolom>10);*/
  cout << "\nMatrix A" << endl;
  for(i=0;i<baris;i++)
   for(j=0;j<kolom;j++)
    {
     cout <<"data [" << i << "," << j << "] = ";
     cin>>m1[i][j];
    }
  cout << "\nMatrix B" << endl;
  for(i=0;i<baris;i++)
   for(j=0;j<kolom;j++)
    {
     cout <<"data [" << i << "," << j << "] = ";
     cin>>m2[i][j];
    }
  for(i=0; i<baris;i++)
    for(j=0; j<kolom; j++)
     {
      hasil[i][j]=0;
     }
     for (k=0;k<3;k++)
      hasil[i][j] = hasil[i][j]+ m1[i][j] * m2[i][j];
  cout << "\nHasilnya..." << endl;
  cout << "Matrix A  +  Matrix B  =  Matrix C";
  for(i=0; i< baris; i++)
   {
    cout<<'\n';
    for(j=0; j<kolom; j++)
     cout << setw(4) << m1[i][j];
     cout << "     ";
    for(j=0; j<kolom; j++)
     cout << setw(4) << m2[i][j];
     cout << "     ";
    for(j=0; j<kolom; j++)
     cout << setw(4) << hasil[i][j];
    cout << endl;
   }
  getch();
}