Our Pi Playlist (more videos): http://bit.ly/PiPlaylist How accurately can we calculate Pi using hundreds of REAL pies? More links & stuff in full description below ↓↓↓ Extended version of this video (director's slice) at https://www.youtube.com/watch?v=x4kyFKyCMv0 This video features Matt Parker: https://twitter.com/standupmaths Matt believes this is the world's most accurate pie-based Pi calculation. More Pi videos: http://bit.ly/W4oDN1 Filmed and edited by Brady Haran Extra camera: James Hennessy Music: null Learn how the music from this video is based on Pi: http://periodicvideos.blogspot.co.uk/2013/03/pimusic.html Clearly these pies were used for educational purposes... However during production of the video, Numberphile donated £314 to a local charity to provide food for people in Nottingham at times of crisis. Behind-the-scenes blog and extra photos: http://periodicvideos.blogspot.co.uk/2013/03/pipies.html We filmed this video at Meadow Lane, home of Notts County FC. NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: null Other merchandise: https://store.dftba.com/collections/numberphile