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

Happy Ending Problem

Happy Ending Problem

Brady Haran
Ron Graham, Problems, Combinatorics
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...

Professor Ron Graham discusses the famed Happy Ending Problem and Ramsey Theory.

More Ron Graham Videos: http://bit.ly/Ron_Graham

An extra little bit at: http://youtu.be/hnIBiIcuudU
Graham's Number: http://youtu.be/XTeJ64KD5cg

Fundamental Theorem of Algebra

Fundamental Theorem of Algebra
Mathematical Way to Choose a Toilet

Mathematical Way to Choose a Toilet