I read it from cover to cover (well, I'm sure I skimmed some details) and it paid off very quickly-- multiple times in the following months I encountered proble

I read it from cover to cover (well, I'm sure I skimmed some details) and it paid off very quickly-- multiple times in the following months I encountered problems that I knew the book had solutions to. e.g. page 246-247 has some newtons method based modular inverse mod 2^n.