DERET GEOMETRI

#include <cstdlib>

#include <iostream>

using namespace std;

class geometri{

friend istream& operator>>(istream&, geometri&);

friend ostream& operator<<(ostream&, geometri&);

public:

geometri();

void cetak();

private:

int x[100];

int a,b,n,un,sn;

int jumlah;

};

istream& operator>>(istream& mlebu, geometri& s){

cout<<”Masukkan Suku Pertama :”; mlebu>>s.a; cout<<endl;

cout<<”Masukkan r :”; mlebu>>s.b; cout<<endl;

cout<<”Masukkan Jumlah Suku :”; mlebu>>s.n; cout<<endl;

return mlebu;

}

ostream& operator<<(ostream& metu, geometri& v){

metu<<”Suku Pertama :”<<v.a<<endl;

metu<<”r :”<<v.b<<endl;

metu<<”Jumlah Suku :”<<v.n<<endl;

metu<<”Deret Geometri :”;

for(int i=0; i<v.n; i++){

metu<<v.x[i]<<”,”;

}

metu<<endl;

metu<<”Jumlah Seluruh Deret : “<<v.jumlah<<endl;

return metu;}

geometri::geometri(){

cout<<”\t\t<< PROGRAM DERET GEOMETRI >>”<<endl;

}

void geometri::cetak(){

x[0]=a;

x[1]=a*b;

x[2]=a*b*b;

for(int i=2; i<n; i++){

x[i]=x[1]*x[i-1];

}

jumlah=0;

for(int i=0; i<n; i++){

jumlah=jumlah+x[i];

}

}

int main(int argc, char *argv[])

{

geometri arif;

cin>>arif;

arif.cetak();

cout<<arif;

system(“PAUSE”);

return EXIT_SUCCESS;

}