C++ Program to Calculate Value of PI

This Program will calculate the value of π.This Program will calculate
the approximated value of π after computing 200,000 terms of the following series.

Code:


#include<iostream>
using namespace std;
int main()
{
int c=0;
double pi=0;
float a=200000;
for(a=1;a<=200000;a=a+2)
    {
        if(c==0)
        {
            pi=pi+4/a;
            c++;
        }
        else
        {
            pi=pi-4/a;
            c--;
        }
    }
    cout<<"PI's Value = "<<pi<<endl;
return 0;
}

#include<iostream>

using namespace std;

int main()

{

int c=0;

double pi=0;

float a=200000;

for(a=1;a<=200000;a=a+2)

{

if(c==0)

{

pi=pi+4/a;

c++;

}

else

{

pi=pi-4/a;

c--;

}

cout<<"PI's Value = "<<pi<<endl;

return 0;

}

Output:

C++ Program to Calculate Value of PI1 min read

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