This app allows you to calculate the digits of the irrational number pi (π) in real time. You can pick how many digits to calculate (up to 1 million). It lets you choose which algorithm to use (Chudnovsky with Binary Splitting, Machin using Euler Arctan, or Machin). Use this app for fun or as a benchmark tool. (On my test device, a Samsung Galaxy S3, it takes about 21 sec to calculate 1,000,000 digits using the Chudnovsky with Binary Splitting algorithm and takes another few seconds to render the display)
