FACTORIAL.CPP SOURCE CODE

/*FACTORIAL.CPP*/
#include "calculator.h"
#include <iostream>
using namespace std;
void ScientificCalculator::factorial()
{
 int num,factorial=1;
    cout<<" Enter Number To Find Its Factorial:  ";
    cin>>num;
    for(int a=1;a<=num;a++)
    {
        factorial=factorial*a;
    }
    cout<<"Factorial of Given Number is ="<<factorial<<endl;
}