Thanks to Jane Street for supporting this video. Check out their open roles, programs and events: https://www.janestreet.com/join-jane-...

Here is the original "Is there an equation for a triangle?" video.    • Is there an equation for a triangle?   (I'm taking suggestions for what Part III should be named. Comment below.)

And thanks to everyone who contributed to the triangleness. Here are all the triangles and non-triangles mentioned in this video:

Mohammed Jafari's close-but-not-triangle: https://www.desmos.com/calculator/hr1...
Generic Viewer's close-but-not-triangle: https://www.desmos.com/calculator/kzp...

Harrison's non-generalised triangle: https://www.desmos.com/calculator/cvp...
Idiotinium's non-generalised triangle: https://www.desmos.com/calculator/svf...
Jaden's non-generalised triangle: https://www.desmos.com/calculator/uas...
Tristan's non-generalised triangle: https://www.desmos.com/calculator/pdu...
And Tristan's Zombie Walker: https://www.desmos.com/calculator/zkc...

Reddit thread generalising triangle equation:   / response_to_matt_parkers_triangle_video  

Anson Mansfield's generalised triangle: https://www.desmos.com/calculator/pbz...
Graham Goble's generalised triangle: https://www.desmos.com/calculator/eax...
Steve's generalised triangle: https://www.desmos.com/calculator/qy4...

Inigo's triangle in ShaderToy: https://www.shadertoy.com/view/XsXSz4

Huge thanks to my Patreon supports. They encourage me to triangle my best.   / standupmaths  

CORRECTIONS
- None yet, let me know if you spot anything!

Filming by Alex Genn-Bash
Editing by Michelle Martin
Diagrams by Sam Hartburn
Written and performed by Matt Parker
Produced by Nicole Jacobus
Music by Howard Carter
Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/
US book: https://www.penguinrandomhouse.com/bo...
UK book: https://mathsgear.co.uk/collections/b...