# PiBenchmark

**Repository Path**: mirrors_ashqal/PiBenchmark

## Basic Information

- **Project Name**: PiBenchmark
- **Description**: Benchmark CPU of android device by calculating pi number
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-08
- **Last Updated**: 2026-01-17

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

PiBenchmark
===========
The source code is very simple and easy to understand!

About:

Benchmark CPU of android device by calculating Pi number

Version: 1.4

Copyright 2014 Navid Norouzi -- Iran

GNU General Public License


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How we calculate Pi:

tan 45° (or π/4 radians) =1, therefore

arctan(1) = π/4

and if we plug this into Gregory's Series: arctan(t) = t-(t^3/3)+(t^5/5)-(t^7/7)+(t^9/9)-... we get the following surprisingly simple and beautiful formula for π: 

arctan(1) = π/4 = 1-(1/3)+(1/5)-(1/7)+(1/9) - ...