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 Apr10 awarded Popular Question Jul2 awarded Curious Feb11 awarded Popular Question May9 accepted Trying to work out $Var(\bar{X})$ of Pareto distribution May9 accepted Orders of elements in cyclic groups Apr24 comment Conjugacy classes of D2n? Ahh thank you, this makes a lot of sense now. Apr24 accepted Conjugacy classes of D2n? Apr24 asked Conjugacy classes of D2n? Apr15 accepted Identity for $\nabla w .\nabla w$ Apr15 comment Identity for $\nabla w .\nabla w$ Oh ok. Thanks, it's actually quite simple :) Apr15 asked Identity for $\nabla w .\nabla w$ Apr6 revised Trying to work out $Var(\bar{X})$ of Pareto distribution added 79 characters in body Apr6 asked Trying to work out $Var(\bar{X})$ of Pareto distribution Apr5 asked Orders of elements in cyclic groups Apr5 comment Taylor's theorem for $|x|<1$ for $\sqrt{1+x}$? @Hurkyl so I can do a Taylor expansion at 0, and then show that the radius of convergence is 1? Apr5 asked Taylor's theorem for $|x|<1$ for $\sqrt{1+x}$? Mar3 comment Show that these groups are not cyclic and hence have no such generator? Great thanks :) But if a group has length $n$ and order $n$ does that necessarily mean it's cyclic? Mar3 comment Show that these groups are not cyclic and hence have no such generator? Oh, I think I understand the first one...for the second, it if because $C_2\times C_4$ has length 8 but order 4, so can't be cyclic? Mar3 revised Show that these groups are not cyclic and hence have no such generator? added 1 characters in body Mar3 asked Is $\mathbb{Z}^2$ cyclic?