Geometry and Physics of Wrinkling [pdf]
https://softmath.seas.harvard.edu/wp-content/uploads/2019/10/2003-03.pdf
#HackerNews #Geometry #Physics #Wrinkling #Research #PDF #SoftMath
Anke
boosted
Alright since I'm apparently not able to find something myself (I searched on and off for the last couple of years and tried my best to calculate it myself) maybe someone here can help me. Suppose you have an ellipse and a circle in 2D is there a numerically stable way to find the intersection points between them? If there is such a solution for two ellipses that would be even better #geometry #math 
Alright since I'm apparently not able to find something myself (I searched on and off for the last couple of years and tried my best to calculate it myself) maybe someone here can help me. Suppose you have an ellipse and a circle in 2D is there a numerically stable way to find the intersection points between them? If there is such a solution for two ellipses that would be even better #geometry #math
OliverUv
boosted
The prompt for day 3 was 'Polyhedron'. In mathematics a 'convex polyhedron' is any subset of ℝ³ which can be obtained as the convex hull of finitely many noncoplanar points. However, when convexity is not required the definition of 'polyhedron' is in some dispute.
Certainly every convex polyhedron is a polyhedron, however there are multip-
On second thoughts, this post would be better expressed as an alignment chart meme.
The prompt for day 3 was 'Polyhedron'. In mathematics a 'convex polyhedron' is any subset of ℝ³ which can be obtained as the convex hull of finitely many noncoplanar points. However, when convexity is not required the definition of 'polyhedron' is in some dispute.
Certainly every convex polyhedron is a polyhedron, however there are multip-
On second thoughts, this post would be better expressed as an alignment chart meme.
Strypey
boosted
It's really tricky to spread the word about events these days! I don't support corporate social media and you don't get read attention there anyway, mailing lists aren't what they once were, and this event wants to reach people across many patterny disciplines..
Any help spreading the word across all the strange pattern-obsessed communities much appreciated!
--
Algorithmic Pattern is a new festival and conference for people curious about the practice and culture of algorithmic pattern-making, across algorithmic music, arts and craft. The first edition will take place both in Sheffield UK and online, during September 2025.
The call for talks/papers is now open, deadline 2nd June - please see our website for details: https://2025.algorithmicpattern.org/call/
#textiles #weaving #algorave #livecoding #algorithmicart #cfp #conference #patterns #pattern #craft #juggling #siteswap #origami #geometry #ethnomathmatics #choreography
STOP OCCUPATION 🍉 S. Costa
boosted
This had me captivated for a good five minutes. I just kept watching how the patterns matched up, trying to parse out the connections in my brain.
Who knew an animation of a Rubik’s Cube and some corresponding concentric circles could be so stimulating?
I have absolutely no idea who created it. Tried to find out to no avail. (Happy to edit with a citation if someone knows.)
This had me captivated for a good five minutes. I just kept watching how the patterns matched up, trying to parse out the connections in my brain.
Who knew an animation of a Rubik’s Cube and some corresponding concentric circles could be so stimulating?
I have absolutely no idea who created it. Tried to find out to no avail. (Happy to edit with a citation if someone knows.)
Jonathan Schofield
boosted
Monohedral triangle tiling of the gyroid, which is the dual tessellation of a partial Cayley surface complex of the group:
<br/>G = ⟨ f₁,t₁ | f₁², t₁⁶, (f₁t₁)⁴, (f₁t₁f₁t₁⁻¹f₁t₁²)² ⟩<br/>
Ball of radius 21. (1/2)
Module that can be used to create the structure. (2/2)
Monohedral triangle tiling of the gyroid, which is the dual tessellation of a partial Cayley surface complex of the group:
<br/>G = ⟨ f₁,t₁ | f₁², t₁⁶, (f₁t₁)⁴, (f₁t₁f₁t₁⁻¹f₁t₁²)² ⟩<br/>
Ball of radius 21. (1/2)
Andrew Wooldridge 🚴♂️
boosted
working with the teen on his summer #geometry bridge-activity workbook, I now have stuck in my head Dolly Parton singing "Scalene, scalene, scalene, scaleeeeeene…" 🎶
halcy :icosahedron:
boosted
#tiling destruction :)
#tiling destruction :)
It's really tricky to spread the word about events these days! I don't support corporate social media and you don't get read attention there anyway, mailing lists aren't what they once were, and this event wants to reach people across many patterny disciplines..
Any help spreading the word across all the strange pattern-obsessed communities much appreciated!
--
Algorithmic Pattern is a new festival and conference for people curious about the practice and culture of algorithmic pattern-making, across algorithmic music, arts and craft. The first edition will take place both in Sheffield UK and online, during September 2025.
The call for talks/papers is now open, deadline 2nd June - please see our website for details: https://2025.algorithmicpattern.org/call/
#textiles #weaving #algorave #livecoding #algorithmicart #cfp #conference #patterns #pattern #craft #juggling #siteswap #origami #geometry #ethnomathmatics #choreography
Another unknown birthday: Amongst the earliest recorded woman in #mathematics, Hypatia lived during the 4th century AD in Alexandria, Egypt, which was part of the Roman Empire. She was born at some time between about 350 and 370 and died in 415 C.E. She taught philosophy, #astronomy and mathematics at a NeoPlatonist school. She believed in empiricism and natural law. 🧵1/n
#sciart #linocut #printmaking #womeninstem #geometry #histsci #astrolabe #MastoArt
