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This is Numberphile. We mainly post videos about mathematics and just numbers in general.

Incredible Formula

Incredible Formula

Brady Haran
James Grime, Formula

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

Balancing a Ruler

Balancing a Ruler
e (Euler's Number)

e (Euler's Number)