PRCS-PI

Demonstrate how to compute the value of π in Plane Rectangular Coordinate System.

Introduction

This program uses a simple but special method to compute the value of π. To achieve high precisions, it uses mp++ (wrapper for GNU MPFR Library). We notice that the result isn't very accurate.
This is the result computed under a 'precision' of 1(default):

3.21799354990720181227976120874663508754653746090348532423780930726215312027493188071806905849145571130739396797038824618862015169967781062558444669728979886

Under 100:

3.34494604258553080392913345589115642916926580020813673238584998980609166948683339540858413489496519638336788606183757010627873221864293995310374928145924224

Build Instructions

It's very simple. Make sure you've installed gmp, mpfr libraries on your machine. Then run

git clone --recursive https://github.com/zxunge/PRCS-PI.git
cd PRCS-PI/ && mkdir build && cd $_
cmake .. -DCMAKE_BUILD_TYPE=Release
# It is required to run CMake again
cmake .. -DCMAKE_BUILD_TYPE=Release
cmake --build .

./prcspi

Use ./prcspi -h for help.

Basic Principle