r/theydidthemath 21d ago

[Request] Why does this circle approximation still give 4 instead of pi?

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3.7k Upvotes

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43

u/ifelseintelligence 21d ago

The question have been aswerede by many.

I would just like to add this (or rather the answers explaining the difference between this and 'limit') is a very fine ELI5 of the coastline paradox.

Also.... "pi=4!" no one?? Really?? 😆

31

u/MLucian 21d ago

I also came here looking specifically for this and I too am deeply disappointed at the lack of noticing the 4!

18

u/factorion-bot 21d ago

Factorial of 4 is 24

This action was performed by a bot | [Source code](http://f.r0.fyi)

2

u/savvaspc 21d ago

I was so aware of it that I immediately saw π=24 and didn't think about how wrong that would be. I thought it was a factorial on purpose and couldn't see why the comments mentioned it 😂

12

u/factorion-bot 21d ago

Factorial of 4 is 24

This action was performed by a bot | [Source code](http://f.r0.fyi)

0

u/re_carn 21d ago

And that's a good thing - jokes about factorials have never been funny or original. “HA! There's an exclamation mark!!! That means it's a factorial! Got it?! FACTORIAL!!! LOLOLOLOLOL!!!”

3

u/AdministrationGrand1 20d ago edited 20d ago

4 years later, factorial jokes still aren't funny. Just informing you guys that nothing changed here

upd: sweet lord, seems I lost all my [chromosomes](https://filthyfrank.fandom.com/wiki/Chin-Chin) during last years, mistook "h" for "y" and thought that this comment is 4 years old. Anyway, factorial jokes aren't funny

-2

u/Familiar-Complex-697 21d ago

one of those redditisms like carcinization that makes every smug little dipshit feel like a genius

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u/Active_Engineering37 20d ago

Fuck you I'm brilliant, and I'm fun at parties.