What is BBP?

BBP is a formula discovered in 1995 by Simon Plouffe. The formula is named after David H. Bailey, Peter Borwein, and Simon Plouffe. More on Wikipedia »

The BBP algorithm is very powerful because it let you calculate the nth pi digit without the need to store the previous n-1th digits. In this website is avaiable three141, a ruby porting of the bbp algorithm.

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I created this website and the gem Three141 just because I want to, not for money. However if the gem satisfies you or if you found here useful informations consider a little donation.

Links

• Simon Plouffe
• David H. Bailey
• Peter Borwein

Be trained on Pi

By using this well made Pi training program created by Eve Astrid Andersson you’ll be able to memorize easily the digits of the Pi number. The program let you choose a few options ( starting digits, number of digits to be entered at time, goal ) and then it starts asking you for Pi digits.