Square roots, strange patterns and a mysterious constant - what are Matt's "grafting numbers" all about? And why is computer programming like skydiving? More links & stuff in full description below ↓↓↓ Matt Parker's website is http://standupmaths.com/ Filmed at the Champagne Bar at St Pancras train station. 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