Print digits of pi using the Leibniz formula: pi = 4 * (1 -1/3 +1/5 -1/7 ....)

Source.c

//Print digits of pi using the Leibniz formula: pi = 4 * (1 -1/3 +1/5 -1/7 ....)

#include <stdio.h>
#define NumType long double

int main(){


	NumType d = 1.0;
	NumType f = 0.0;
	NumType pi = 0.0;
	NumType dotRemover = 30000000000000000.0;

	for (long long i = 0; (i + 10000000000000000) > 0; i++)
	{
		f = (NumType)1.0 / (((NumType)3.0) + ((NumType)i) * ((NumType)2.0));

		if (i % 2 == 0)
			d -= f;
		else
			d += f;

		if (i % 100000000 == 100)
		{
			pi = ((NumType)40000000000000000.0) * d;
			pi = pi - dotRemover;
			printf("3.%Lf\n", pi);
		}
	}

	while (2>0) {}

	return 0;
}