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 Sep16 comment Congruence modulo n where one side is equal to 1 OK thanks, I just found the terminology and formulation used in the book quite confusing. Sep15 comment Congruence modulo n where one side is equal to 1 Let me quote the book: Two numbers are said to be congruent modulo n if they both have the same remainder when divided by n. The remainder of a number a when divided by n is also referred to as the remainder of a modulo n, or simply as a modulo n. So as far as I understood it, they're saying that $a^{n-1}$ and $1$ are congruent modulo $n$, which means that they have the same remainder when divided by $n$. So I'm not sure in your answer... May10 comment Can I keep adding more dimensions to complex numbers? For R3 you simply define a number j that has the property j^3 =ā 1. - isn't that -1? Mar14 comment Any natural number is greater than or equal to its product of digits. @Hawk I misread the question as "lower than or equal to" - sorry! Mar14 comment Any natural number is greater than or equal to its product of digits. I don't get this. If a number has 0 as a digit, wont its product of digits also be 0? Sep22 comment Can I keep adding more dimensions to complex numbers? How can you loose those? Wow, I really need to research into this... Sep22 comment Can I keep adding more dimensions to complex numbers? @EnviousPage, of course, that's why I put it in the quotation signs... Sep22 comment What are imaginary numbers? Jul5 comment How to transform a set of 3D vectors into a 2D plane, from a view point of another 3D vector? Hmm, AFAIK, the GPU only knows how to render "polys", usually just simple triangles. Every model needs to be tesselated to a few hundred of those. Well, I'll figure the clipping out when I actually start. Jul5 comment How to transform a set of 3D vectors into a 2D plane, from a view point of another 3D vector? Wait, but wouldn't the vectors outside of the frustrum just... Be outside? I mean, I haven't done this yet as I've been busy, so I'm not sure... Jul5 comment How to transform a set of 3D vectors into a 2D plane, from a view point of another 3D vector? @JyrkiLahtonen, OK, noted, but clipping is just making stuff that is far off and stuff that is too close disappear, right? I can do that... May28 comment What are some books that I should read on 3D mathematics? Damn, I just spent a lot on some other books so I'm kinda short. I'll see if I can download it somewhere, and if I'll like it, I'll buy it later. Thanks! May28 comment What are some books that I should read on 3D mathematics? Maybe in the American/UK/whathaveyou school system, here I'm a "first grader" all over again. ;) But yeah, that's what I meant. Nov17 comment How can I find the derivative of a function that takes in two variables? Thanks for that link! Although, I usually found it hard to learn from Wikipedia (but that can vary, depending on who wrote the article)... Oct9 comment Can you please explain this simple task with sets to me? Oh, sorry, I wasn't thinking... Oct9 comment Can you please explain this simple task with sets to me? Hey, thanks for the answer, but I do understand the problem here, I just didn't know how to write it down... I'm sorry, I should have been more accurate. I'll give you a vote up, when I can though :) Oct9 comment Can you please explain this simple task with sets to me? Thanks, really, I do understand absolutely all the math here, I can list the solutions in my head, the problem was to write them down. Well, you solved both anyway, so thank you. Also, shouldn't it be (Zā{1}), not (Zā{0})? Oct9 comment Can you please explain this simple task with sets to me? I do know which numbers are supposed to be there, but I can't simply write {..., bla, bla, bla, ...}, so yeah writing that down is the problem. Oct9 comment Can you please explain this simple task with sets to me? Nope, N is without 0, and N0 is with 0.