obsolete rule prohibiting match-ups between wrestlers from the same group of stables
I want to take the product of N numbers minus one
The product in this case is not limited to multiplication.
In the case of additions with inverse yuan, etc., it is even easier because you can take the sum of the whole and add the inverse yuan of the one you want to remove
---
This page is auto-translated from /nishio/一つ除き積. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.