How Anime Fans Stumbled upon a Mathematical Proof

When a fan of a cult anime series wanted to watch its episodes in every possible order, they asked a question that had perplexed combinatorial mathematicians for years

https://www.scientificamerican.com/article/the-surprisingly-difficult-mathematical-proof-that-anime-fans-helped-solve/

#news #science #math #anime

The Surprisingly Difficult Mathematical Proof That Anime Fans Helped Solve

When a fan of a cult anime series wanted to watch its episodes in every possible order, they asked a question that had perplexed combinatorial mathematicians for years

Scientific American
@Some_Emo_Chick Includes a mention of contributions from our own @gregeganSF

@Some_Emo_Chick this hurts my head. I'd expect it to just be An n^(n-1) kind of deal. But then they mention watching episodes more than once in one sitting? Why would you watch a duplicate episode and count it for the run?

And if duplicate episode per sitting is allowed, wouldn't the answer be infinite as you could just keep watching duplicates?

@Some_Emo_Chick (I'm not a math nerd, so I'm sure I'm missing something obvious here)

@Some_Emo_Chick

There were a few YouTube videos on this. Here is one with Robin Houston.

#SuperPermutations #math #maths

https://youtu.be/OZzIvl1tbPo

Superpermutations: the maths problem solved by 4chan

YouTube