El'endia Starman
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 Jun 30 answered Derive $\frac{d}{dx} \left[\sin^{-1} x\right] = \frac{1}{\sqrt{1-x^2}}$ Jun 30 asked Using floor, ceiling, square root, and factorial functions to get integers Jun 29 awarded Nice Question Jun 27 answered Conway's game of life variations Jun 26 answered Prove that $6|2n^3+3n^2+n$ Jun 15 comment Name for resistance to change in data @user6312: Ah, thanks very much! :) Jun 15 comment Name for resistance to change in data So how would I calculate the sample variance with one data point ($=\frac{1000}{1010}$ or $=\frac{100}{101}$)? Jun 15 comment Name for resistance to change in data Well, the problem is that I only have one data point, which makes all those formulas useless. If it helps, think about these numbers as the ratings for a bookseller on say...Amazon. Someone with 1000 positive votes and 10 negative is much more likely to be reliable than someone with 100 positive and 1 negative... Jun 15 comment Name for resistance to change in data Right, I know about standard deviance. However, I don't see a way to calculate that from just those numbers. Jun 15 comment Name for resistance to change in data I didn't really want to edit the original question to put this, but do you also know of where I can find ways to calculate the degree of robustness? Jun 15 accepted Name for resistance to change in data Jun 15 asked Name for resistance to change in data Jun 15 revised About Cardinality in Hausdorff Spaces Lower-cased title. Jun 15 suggested approved edit on About Cardinality in Hausdorff Spaces Jun 10 revised Bulgarian Solitaire: Size of root loops Added a tag. Jun 9 answered X and Y to smooth destination Jun 9 awarded Critic Jun 9 accepted Bulgarian Solitaire: Size of root loops Jun 9 comment Bulgarian Solitaire: Size of root loops @Gerry: Really? I did a search for "bulgarian solitaire" and only got three relevant results, none of which were papers. Additionally, are these papers you speak of behind a pay-wall? Jun 9 revised Bulgarian Solitaire: Size of root loops "Permutation"s should have been "partition"s