Recent content by AdamsJoK

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    I When is D_{n} abelian? What's wrong with the proof?

    I agree that this could have been done more simply(i'm not looking for an alternative proof), but I don't understand how it is wrong, any insight? Since Dn is an dihedral group, we know its elements are symmetries, Dn = (R1,R2,R3...Ri) and since R is a symmetry, we know it's a permutation, so...
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    I Prime-counting function questions

    Hey Lucas SV, you're right I do mean easy to compute. I overlooked the first which is pretty "clear cut" but as you have said, it's useless because of how large factorials get. Appreciate the insight, thank you.
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    I Prime-counting function questions

    Figures I was being sloppy, a function is just a ordered pair(with some rules). The 2nd paragraph answers the question. Helpful post, I appreciate it, thank you.
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    Exploring the Exciting World of Mathematics: A 3rd Year Student's Journey

    Hi, I'm new to the forum and in my 3rd year for a math degree. Thanks
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    I Prime-counting function questions

    I'm confused about the existence of the prime counting function. When I search for information about pi(x), I turn up a lot of information on approximations and algorithms for finding pi(x) but there doesn't seem to be any clear cut formula, yet it seems to exist? If there exists formula for...
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