Numberphile

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

Fantastic Quaternions

Jan 18

Jan 18 Fantastic Quaternions

James Grime, Complex Numbers

Shapes and Hook Numbers

Jan 8

Jan 8 Shapes and Hook Numbers

Curtis Greene, Combinatorics

The iPhone of Slide Rules

Jan 6

Jan 6 The iPhone of Slide Rules

Alex Bellos, Tools, History

Super-fast way to tie Shoelaces

Dec 29

Dec 29 Super-fast way to tie Shoelaces

Matt Parker, Knots

Freaky Dot Patterns

Dec 23

Dec 23 Freaky Dot Patterns

Tadashi Tokieda, Patterns

Glitch Primes and Cyclops Numbers

Dec 7

Dec 7 Glitch Primes and Cyclops Numbers

Simon Pampena, Prime Numbers

Secrets of 3-Board Tic-Tac-Toe

Dec 1

Dec 1 Secrets of 3-Board Tic-Tac-Toe

Thane Plambeck, Games

Tic-Tac-Toe (with Xs only)

Nov 26

Nov 26 Tic-Tac-Toe (with Xs only)

Thane Plambeck, Games

Cute Paper Trick

Nov 21

Nov 21 Cute Paper Trick

Tadashi Tokieda

Unexpected Shapes (Part 2)

Nov 19

Nov 19 Unexpected Shapes (Part 2)

Tadashi Tokieda, Möbius

Unexpected Shapes (Part 1)

Nov 18

Nov 18 Unexpected Shapes (Part 1)

Tadashi Tokieda, Möbius

Cutting a Klein Bottle in Half

Nov 11

Nov 11 Cutting a Klein Bottle in Half

Cliff Stoll, Klein Bottles

The Uncracked Problem with 33

Nov 6

Nov 6 The Uncracked Problem with 33

Tim Browning, Cubes

How DNA unties its own knots

Nov 2

Nov 2 How DNA unties its own knots

Mariel Vazquez, Topology

The Shape of DNA

Oct 26

Oct 26 The Shape of DNA

Mariel Vazquez, Topology

Skewes' Massive Number

Oct 23

Oct 23 Skewes' Massive Number

James Grime, Constant

Kakeya's Needle Problem

Oct 15

Oct 15 Kakeya's Needle Problem

Charles Fefferman, Problems

Oct 5

Oct 5 Powers of 2

Dmitry Kleinbock