Calculator Number Trick: rectangle patterns

From the creator

Here is the original Fermat's Library tweet. https://twitter.com/fermatslibrary/status/1052544515632959488 We make Think Maths teaching resources to go with Stand-up Maths videos. For this one we have a cheat sheet to an algebraic proof. http://think-maths.co.uk/standupmaths-videos?yt-calculator-rectangles#calculator-rectangles Many people are asking for the gif. It’s available in different forms in various places online. https://tenor.com/view/matt-parker-parker-square-mindblown-maths-math-gif-11856384 https://imgur.com/gallery/HyPfz Originally a homage to the Tim and Eric gif. From this video: https://youtu.be/LhlqCJjbEa0 The ticking sound in the video was from here. https://freesound.org/people/KentVideoProduction/sounds/159723/ CORRECTIONS - I did not properly think through the hexadecimal example. I meant that any such digits on a base-10 calculator would give multiples of 11. On a true hexadecimal calculator you would get multiples of 17 (or any n+1 for base-n). First spotted by MasterHigure. - Let me know if you spot anything else! Thanks to my Patreon supports who do support these videos and make them possible. Here is a random subset: Igor Bogoslavskyi James Williams Magesh Jayapandian David Lake Chris W West Support my channel and I can make more maths videos: https://www.patreon.com/standupmaths Music by Howard Carter Filming and editing by Matt Parker Design by Simon Wright MATT PARKER: Stand-up Mathematician Website: http://standupmaths.com/ Maths book:

Published 2019-05-31 · Watch on YouTube ↗
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