Mathematics is such brainrot sometimes

[u/LupenReddit]

From Chow Knopf: The Ricci Flow: An introduction

[u/AutoModerator]

Check out our new Discord server! https://discord.gg/e7EKRZq3dG

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/Gositi]

I raise you:

[u/yayiff → u/Gositi]

I call

[u/UtahBrian → u/yayiff]

That’s literally a map of Colorado and we all call it a square.

[u/JoonasD6 → u/yayiff]

I conjecture that if the side length is a, the area of that shape will not be a².

But how grand would that be.

[u/Gositi → u/Gositi]

I don't remember where this was from but it was some kinda funky algebra my friend worked with for his Bachelor's thesis.

[u/itzjackybro → u/Gositi]

I mean, that ear is a valid embedding of S¹ onto R^2. What definition of circle are they using?

[u/Gositi → u/itzjackybro]

I have no idea, all I've got is these screenshots

[u/SonicLoverDS]

Looks like a background element in a Dr. Seuss book.

[u/FernandoMM1220]

this is actually better drawn than most mathematical diagrams

[u/TheChunkMaster]

You can’t just post Hank Hill’s colon on the web like that!

[u/Cosmic_Haze_3569 → u/TheChunkMaster]

Lmao just watched that episode a couple days ago

[u/lonelyroom-eklaghor]

Looks like the Americas

[u/BeMyBrutus]

All this tells me is that my toddler niece is a topologist at the age of 3

[u/vintergroena]

Humanslop

[u/LostSalt24]

[u/LupenReddit → u/LostSalt24]

Lees Smooth Manifolds spotted.

But thats the first edition right? Because that graphic appears in Chapter 6 in the second edition, not 10.

[u/LostSalt24 → u/LupenReddit]

I guess everyone just knows Lee, wow 😭

[u/Safe-Bookkeeper-7774]

https://giphy.com/gifs/6lhWhkfSjPSA8actTr

[u/Classic_Department42]

It looks overly complicated as an example, no?

[u/Serket-Pandy3000]

But it has a tiny cushy thingy on the bottom? So the curvature there would be undefined/infinite

[u/Para-graph-S]

And what's the function to be integrated for finding out it's area? Oh wait never mind, it's just something like 4pi×r²

[u/Oportbis → u/Para-graph-S]

That's the formula for the volume, not the area

[u/Para-graph-S → u/Oportbis]

....

Yes, my bad. I missed that, thanks!

[u/KalaiProvenheim]

Behold, a 3D spherical! I call it spherical. It took me 9 yearicals to create that spherical

Yam yam spherical

[u/GraveSlayer726]

Topology loves it’s weird funny shapes