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The article is trying to get to the concept of a group inverse without using too much jargon. If you don't mind jargon, as usual you'll want to go to Wikipedia
by kccqzy 4y ago
The article is trying to get to the concept of a group inverse without using too much jargon. If you don't mind jargon, as usual you'll want to go to Wikipedia to learn more.
https://en.wikipedia.org/wiki/Multiplicative_group_of_integers_modulo_n https://en.wikipedia.org/wiki/Multiplicative_group_of_intege...
- wging 4y agoI'd suggest https://en.wikipedia.org/wiki/Finite_field https://en.wikipedia.org/wiki/Finite_field - they'd probably get to the page you linked in trying to understand finite fields, but finite fields (AKA Galois fields) are exactly what the post is about.