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Tom Edgar

@tedgar7.bsky.social

Mathematician.

56 Followers  |  127 Following  |  9 Posts  |  Joined: 08.02.2025  |  1.3558

Latest posts by tedgar7.bsky.social on Bluesky

530553166 : www.fq.math.ca/Papers1/56-2...

But if you want a large number related, check out the related numbers in this cited article : www.fq.math.ca/Scanned/31-2...

13.05.2025 04:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Folding Polyhedral Nets
YouTube video by Mathematical Visual Proofs Folding Polyhedral Nets

If you didn’t want to watch how to code folding polyhedral nets in manim and just want to see the resulting animation, here you go:

Folding Polyhedral Nets
youtube.com/shorts/3TOm5...

26.04.2025 15:25 β€” πŸ‘ 9    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

New month, new process video for the Talking Maths in Public animation generation collaboration. The challenge was to animate polyhedral nets folding up. I show one way in manim. Is this helpful to learn from?

youtu.be/d14hQ0QnWJI

talkingmathsinpublic.uk/animation/

#MathsAnimationTMiP

24.04.2025 15:05 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

One of my favorites!

17.04.2025 04:26 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Sequence from @tedgar7.bsky.social!

Entries are light-colored if and only if there are no 'carries' that occur when adding k and n-k in base 6 using the traditional addition algorithm.

08.04.2025 22:38 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

You still have two weeks to submit your video for this month's TMiP Animation Generation Collaboration! April's prompt is to create an animation of the net of a polyhedron opening and closing, and show your process. It can be any polyhedron you like!

16.04.2025 09:06 β€” πŸ‘ 3    πŸ” 3    πŸ’¬ 1    πŸ“Œ 2
Ptolemy's Theorem | Proof without Words
YouTube video by Mathematical Visual Proofs Ptolemy's Theorem | Proof without Words

Probably the most epic proof of Ptolemy's theorem you will ever see:

youtu.be/heu3ha4X2YA

#math #proof #proofwithoutwords

06.04.2025 18:41 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Preview
A Trick Fitch for Two Published in Math Horizons (Vol. 32, No. 4, 2025)

New Math Horizons is out now and I have a short article about taking the Fitch Cheney card trick down to two cards. It’s pretty hard to perform but there is cool math involved :

www.tandfonline.com/eprint/VVSXM...

04.04.2025 03:14 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Advertisement - A Month of April Fools

Last year I made this April math calendar with one β€œApril fool” math concept for each day:

maa.tandfonline.com/doi/epdf/10....

#math #aprilfools

01.04.2025 15:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Circle and Sine Wave Manim Build (Talking Maths in Public Animation Generation Collaboration)
YouTube video by Mathematical Visual Proofs Circle and Sine Wave Manim Build (Talking Maths in Public Animation Generation Collaboration)

Tried a new type of video as part of the Talking Maths in Public animation generation collaboration. The challenge was to animate classic circle and sine wave. I show one way in manim. Is this helpful to learn from?

talkingmathsinpublic.uk/animation/

#MathsAnimationTMiP

youtu.be/H_iW3nEzuyY?...

22.03.2025 13:07 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1
Leibniz Formula for Pi/4 - A Pi Day Visualization/Dissection
YouTube video by Mathematical Visual Proofs Leibniz Formula for Pi/4 - A Pi Day Visualization/Dissection

It’s already Pi day in some parts of the world. Here’s a cool visualization of the Madhava-Gregory-Leibniz formula for pi/4 due to Viggo Brun (and written about by Mitsuo Kobayashi). Hope you like it and share with all your math enthusiast friends!

youtu.be/rzZ2JTFVDdw

13.03.2025 14:09 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Leibniz Formula for Pi/4 - A Pi Day Visualization/Dissection
YouTube video by Mathematical Visual Proofs Leibniz Formula for Pi/4 - A Pi Day Visualization/Dissection

It’s already Pi day in some parts of the world. Here’s a cool visualization of the Madhava-Gregory-Leibniz formula for pi/4 due to Viggo Brun (and written about by Mitsuo Kobayashi). Hope you like it and share with all your math enthusiast friends!

youtu.be/rzZ2JTFVDdw

13.03.2025 14:09 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Preview
MAA Focus February/March 2025

This has to be one of my favorite issues of MAA FOCUS. We have a beautiful feature on math and travel. Check it out!

digitaleditions.walsworthprintgroup.com/publication/...

12.02.2025 23:26 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Image of February 2025 issue of Math Horizons showing several Rubik's cubes patterns.

Image of February 2025 issue of Math Horizons showing several Rubik's cubes patterns.

The latest issue of Math Horizons is available to MAA @joinmaa.bsky.social members online.

Maria, Katherine, and Michelle Nogin help us understand why some Rubik's curbs patterns are not possible. Read their article "Permutations in Rubik's Cubes" in the latest issue of Math Horizons.

05.02.2025 22:44 β€” πŸ‘ 13    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1

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