program penjumlahan,pengurangan,dan perkalian pada matriks

program penjumlahan,pengurangan,dan perkalian pada matriks

1.penjumlahan

#include <stdio.h>
#include <conio.h>

void main()
{
int j,i,a[2][2],b[2][2],c[2][2];
a[0][0]=1;
a[0][1]=2;
a[1][0]=5;
a[1][1]=6;
b[0][0]=1;
b[0][1]=2;
b[1][0]=5;
b[1][1]=6;

printf("Matrik a \n");

for (i=0; i<2; i++){
 for(j=0;j<2;j++){

 printf(" %d",a[i][j]);

 }
 printf("\n");
}

printf("Matrik b \n");

for (i=0; i<2; i++){
 for(j=0;j<2;j++){

 printf(" %d",b[i][j]);

 }
 printf("\n");

}

printf("Hasil a+b \n");
for (i=0; i<2; i++){
 for(j=0;j<2;j++){
    c[i][j]=a[i][j]+b[i][j];

 printf(" %d",c[i][j]);

 }
 printf("\n");

}
 getch();
}

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2.pengurangan

#include

#include

#include

int i, j, baris, kolom, m1[10]

[10], m2[10]

[10], hasil[10]

[10];

void main()

{

  clrscr();

  cout << "Operasi Pengurangan Matrixn";

  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

    for(j=0;j

    {

      cout <<"data [" << i << "," << j << "] = ";

     cin>>m1[i]

[j];

    }

  cout << "nMatrix B" << endl;

  for(i=0;i

    for(j=0;j

    {

      cout <<"data [" << i << "," << j << "] = ";

     cin>>m2[i]

[j];

    }

  for(i=0; i

    for(j=0; 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

      cout << setw(4) << m1[i]

[j];

      cout << "     ";

    for(j=0; j

      cout << setw(4) << m2[i]

[j];

     cout << "     ";

     for(j=0; j

     cout << setw(4) << hasil[i]

[j];

     cout << endl;

   }

  getch();

}

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3.perkalian

#include <iostream.h>

#include <conio.h>

#include <iomanip.h>

void main()

{

int A[3][3],B[3][3],C[3][3],i,j,k;

clrscr();

//masukkan matrix A

cout<<"Silahkan input matrik A : \n";

cout<<"------------------------- \n";

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

cout<<"Elemen ke "<<(i+1)<<","<<(j+1)<<" : ";

cin>>A[i][j];

}

}

//cetak matrix A

cout<<"\nMatrik A : \n";;

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

cout<<setw(4)<<A[i][j];

}

cout<<endl;

}

cout<<endl;

//masukkan matriks B

cout<<"Silahkan input matrik B : \n";

cout<<"------------------------- \n";

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

cout<<"Elemen ke "<<(i+1)<<","<<(j+1)<<" : ";

cin>>B[i][j];

}

}

//cetak matrix B

cout<<"\nMatrik B : \n";

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

cout<<setw(4)<<B[i][j];

}

cout<<endl;

}

//Operasi Perkalian

for (i=0;i<3;i++)

{

for (j=0;j<3;j++)

{

C[i][j]=0;

for (k=0;k< 3;k++)

{

C[i][j]+= A[i][k]*B[k][j];

}

}

}

//Menampilkan hasil

cout<<"\nMatrik C, Hasil : \n";

for(i=0;i<3;i++)

{

for(j=0;j<3;j++)

{

cout<<setw(4)<<C[i][j];

}

cout<<endl;

}

cout<<endl;

getch();

}

Fungsi Program Mencari bilangan Prima

#include <iostream.h>

int main()
{
int a, b, i;

cout << "===================================  "<<endl;
cout << "---Program Menentukan Bil. Prima---  "<<endl;
cout << "===================================\n"<<endl;
cout << "Masukkan bilangan bulat positif : ";cin >> a;
b = 0;
for (i=1; i<=a; i++)
if (a%i==0)
b++;

if (b==2)
cout <<a<< " adalah bilangan prima ";
else
cout <<a<< " bukan bilangan prima ";

return 0;
}