Rotation without rotating.
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Here are Andrew Taylors slides on "Rotation with three shears". I saw him give this talk at the MathsJam Gathering 2023. The proof is on page 4. https://github.andrewt.net/shears/
This is a nice introduction to the concept: https://cohost.org/tomforsyth/post/891823-rotation-with-three
Way more details on the maths behind rotating with shears here: https://www.ocf.berkeley.edu/~fricke/projects/israel/paeth/rotation_by_shearing.html
Oh dang my book: https://mathsgear.co.uk/collections/books/products/love-triangle-by-matt-parker-signed
Huge thanks to my Patreon supporters. They spin me right round, baby, right round, like a record, baby, right round^3. https://www.patreon.com/standupmaths
CORRECTIONS
- None yet, let me know if you spot anything!
Filming by Alex Genn-Bash
Editing by Dan Daniel
Written and performed by Matt Parker
Graphics by Matt Parker and Andrew Taylor
Produced by Nicole Jacobus
Music by Howard Carter
Design by Simon Wright and Adam Robinson
MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/