Caleigh Fisher
kalifissure.bsky.social
Longtime STEaM educator. '84-now Mythographer@Spiral Garden '87-'00 Manager Cafe Steinhof Bkln '01-'17 Life is a game. You win by playing and CARING<No matter what the enlightened edge lord says. https://youtu.be/XY5s73I9LI8?si=c9MmVXGvIQys5MWi
👤 Joined on 11 November 2024
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- 11 Kas 2024, 23:57
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Happy Hallowe’en! 🎃 Wearing my new t-shirt with print by @slipperyjack.bsky.social featuring my favourite gargoyle, Bok!
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A smoke simulation from four operations: add forces, trace particles backwards, diffuse, then project away compression. Fourier geometry explains the pressure step in Stam’s Stable Fluids. https://www.gpeyre.com/blog/2026/10/28/stable-fluids/
Show PostThe product of two Gaussian bumps is another bump. Yves Meyer turned this identity into a Banach algebra, whose atomic norm is equivalent to a Besov norm. Explore moving mixtures and their products. https://www.gpeyre.com/blog/2026/10/30/hump-algebra/
Show PostHow far apart are two Gaussian covariances? Bures optimizes their alignment; linear OT fixes a reference. They agree exactly for commuting matrices—and differ by at most a factor √2. https://www.gpeyre.com/blog/2026/10/31/bures-distance-square-root-covariances/
Show PostThe Mathematical Nexus brings together 800 animated vignettes and 140 accompanying Python notebooks, encompassing most of the mathematical content I have shared on social media. www.gpeyre.com/mathematical...
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