Incredible Formula
Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers.Check out Brilliant (get 20% off their premium service): https://brillian...
Dr James Grime discusses a couple of clever formulas which are pandigital - using all the numbers from 1-9.
More on pandigital numbers: https://youtu.be/gaVMrqzb91w
More on e: https://youtu.be/AuA2EAgAegE
More James Grime videos: http://bit.ly/grimevideos
Book James for a talk: http://jamesgrime.com
The contest which gave us these formulas: http://www2.stetson.edu/~efriedma/mathmagic/0804.html
Pi Playlist: http://bit.ly/PiPlaylist
