Numberphile

Hello there.

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

All in Circles

Infinite Circles

Dec 19

Dec 19 Infinite Circles

Holly Krieger, Circles

The Journey to 3264

Apr 2

Apr 2 The Journey to 3264

David Eisenbud, Geometry, Circles

A Problem with the Parallel Postulate

Dec 15

Dec 15 A Problem with the Parallel Postulate

Juanita Pinzón Caicedo, Circles, Geometry, Hyperbolic Geometry

Infinitely Many Touching Circles

Nov 17

Nov 17 Infinitely Many Touching Circles

Matt Henderson, Circles

Beautiful Trigonometry

Jun 16

Jun 16 Beautiful Trigonometry

Ben Sparks, Trigonometry, Circles

Pentagons and the Golden Ratio

Feb 9

Feb 9 Pentagons and the Golden Ratio

Zvezdelina Stankova, Circles, Triangles, Golden Ratio

Ptolemy's Theorem

Feb 9

Feb 9 Ptolemy's Theorem

Zvezdelina Stankova, Circles, Triangles

May 28

May 28 Cat and Mouse

Ben Sparks, Pi, Circles

Overlapping Circles

Apr 15

Apr 15 Overlapping Circles

Neil Sloane, Sequences, Circles

Funny Fractions and Ford Circles

Jun 9

Jun 9 Funny Fractions and Ford Circles

Francis Bonahon, Circles

Sep 8

Sep 8 Wobbly Circles

Matt Parker, Circles

Apr 13

Apr 13 Epic Circles

Simon Pampena, Circles

Squaring the Circle

Mar 25

Mar 25 Squaring the Circle

James Grime, Circles, Pi