Why do prime numbers make these spirals? (2019)(3blue1brown.com)
331 points by nivethan | 88 comments
A 3Blue1Brown lesson page with an embedded video explaining why plotting prime numbers in polar coordinates produces spiral patterns.
First screen, captured .
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Lessons by 3blue1brown(3blue1brown.com)
396 points by spallas | 104 comments
Homepage of 3Blue1Brown, Grant Sanderson's site offering animated math video lessons, blog posts, podcast, and extras.
3Blue1Brown Calculus Blog Series(3blue1brown.com)
214 points by Tomte | 33 comments
3D Rotation Design(mattkeeter.com)
124 points by fisian | 32 comments
Fidget(mattkeeter.com)
529 points by todsacerdoti | 51 comments
Matt Keeter's project page for Fidget, a library for representing, compiling, and evaluating large math expressions, mainly as a backend for implicit surfaces.
Mathematical Origami(mathigon.org)
108 points by signa11 | 22 comments
Mathigon page on mathematical origami, showing how to fold Platonic solids and other polyhedra with 3D models and explanations.