Matt Parker appears courtesy of the South Surrey and Associated Regions Calculator Appreciation Society for Professionals and Amateurs - http://www.ssaarcasfpaa.com/ More links & stuff in full description below ↓↓↓ Any similarities between Gaxio and Casio calculators are, we are sure, entirely coincidental. Unboxing playlist: http://bit.ly/CalcUnbox More Matt Parker on Numberphile: http://bit.ly/Matt_Videos Matt's own YouTube channel: http://bit.ly/StandUpMathsYT Support us on Patreon: http://www.patreon.com/numberphile 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 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile Videos by Brady Haran 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