Reddit mentions of An Introduction to Number Theory with Cryptography (Textbooks in Mathematics)

Two of my all time favorite math subjects: Linear Algebra and Number Theory.

My Number Theory professor actually wrote a textbook that I think you’d find is, generally speaking, pretty easy to follow and has some neat applications. Bear in mind though that he wrote it specifically to teach Number Theory at a University level so sometimes reading through some proofs may not be exactly clear. here is the libgen link, if you’d rather another source this is the amazon link to purchase or rent the book.

You will learn some cool techniques and patterns and things you (possibly) never even knew about numbers if you start studying Number Theory.

Now my linear algebra textbook I never actually used because my professor never required it but from what I hear it’s a good foundation but doesn’t expound much upon certain topics - idk if that’s true but I heard the author is a chill dude so here ya go

You can libgen that too.

I don’t exactly think studying calculus on your own will be too exciting, but if you do study calculus, you can then carry it over to other fields - like physics, which has a foundation in calculus from Isaac Newton. I don’t have a good reading source for introductory calculus.