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Penrose: From mathematical notation to beautiful diagrams

176 pointsby amazing_storiesalmost 5 years ago

11 comments

staredalmost 5 years ago
In this line - I enjoyed playing Euclidea (<a href="https:&#x2F;&#x2F;www.euclidea.xyz&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.euclidea.xyz&#x2F;</a>) a minimalistic game on Euclidean geometry. The specification of geometry looks similar to the one from the game.<p>...<p>Side note: when I hear &quot;Penrose diagrams&quot; I have in mind Penrose tensor notation, as in <a href="https:&#x2F;&#x2F;www.math3ma.com&#x2F;blog&#x2F;matrices-as-tensor-network-diagrams" rel="nofollow">https:&#x2F;&#x2F;www.math3ma.com&#x2F;blog&#x2F;matrices-as-tensor-network-diag...</a>.
nsajkoalmost 5 years ago
The <i>Byrne</i> they mention is Oliver Byrne, who made a book of Elements of Euclid including colored graphics for the geometry.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Oliver_Byrne_(mathematician)" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Oliver_Byrne_(mathematician)</a><p>Archive.org, print: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11628606" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11628606</a><p>In TeX: <a href="https:&#x2F;&#x2F;github.com&#x2F;jemmybutton&#x2F;byrne-euclid" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jemmybutton&#x2F;byrne-euclid</a>
Xophmeisteralmost 5 years ago
As a recovering mathematician, this fills me with joy. It would be great if it were implemented as, say, a LaTeX package, so the code to your diagrams could sit right in your documents (like how TikZ works). Still, either way, amazing work!
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peter_d_shermanalmost 5 years ago
This looks beautiful! And strange! And beautiful! Like the diagrams for an entire Calculus textbook could be created with it...(!)<p><i>Penrose, for mathematical drawings, might very well become what TeX, LaTeX, and Desktop Publishing programs are, to text!</i><p>I think you are on the right track to something grand!<p>Wishing you a lot of luck in this endeavor!
mark_l_watsonalmost 5 years ago
It is ready for public use yet - I wish they had put that information sooner in the article.<p>That said, looks cool and it is written in Haskell and React: <a href="https:&#x2F;&#x2F;github.com&#x2F;penrose&#x2F;penrose" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;penrose&#x2F;penrose</a>
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6gvONxR4sf7oalmost 5 years ago
Stuff like this could be amazing for pedagogy. It’s automatically generating <i>different</i> ways of looking at a topic. I’m sure authors would love to include these different viewpoints were it not for the effort involved, so making it easy could be great!
Schipholalmost 5 years ago
A twitter thread by the first author of the paper: <a href="https:&#x2F;&#x2F;twitter.com&#x2F;hypotext&#x2F;status&#x2F;1268218080993386497?s=20" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;hypotext&#x2F;status&#x2F;1268218080993386497?s=20</a>
2sk21almost 5 years ago
So this is written in Haskell - very impressive demo of the languages capabilities.
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ThouYSalmost 5 years ago
Oh how beautiful! Keenan Crane&#x27;s papers by themselves are already a blessing. Now this, illustrations in his style? I&#x27;m drooling!
dunefoxalmost 5 years ago
That is a beautiful document!
layoutIfNeededalmost 5 years ago
Oh, I thought this was about the Penrose graphical notation for tensors: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Penrose_graphical_notation" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Penrose_graphical_notation</a>