README.md

Description

This code calculates an estimated value of Pi using the Leibnitz series (which is basically a power series expansion of a trigonometric function which allows to estimate Pi very well)

More Info

Prints the estimated value of Pi

Submitted On
By	Eli
Level	Beginner
User Rating	4.8 (19 globes from 4 users)
Compatibility	C++ (general)
Category	Math
World	C / C++
Archive File

API Declarations

iostream.h
math.h

Source Code

#include <iostream.h>
#include <math.h>
#define NUM_OF_ELEMENTS 20000
int main()
{
 double pi = 0;
 // Calculating pi/4
 for (long int n = 1; n <= NUM_OF_ELEMENTS; n++)
 {
 pi += (double) pow(-1, n+1)/(2*n-1);
 }
 // Calculating pi
 pi *= 4;
 cout << "Estimated PI value (" << NUM_OF_ELEMENTS << " elements of Leibnitz series): "<< pi;
 return 0;
}