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6 Basic question about mod jun 27 '11
5 $x^x=y$. How to solve for $x$? jul 8 '11
5 What's the probability that there's at least one ball in every bin if 2n balls are placed into n bins? mar 25 '12
1 How to read this symbol “$\varpropto$” in the following equation and what is its meaning? aug 14 '13
1 How to rank a product with 90% score by more number of people better than a product with 100% score by less number of people? may 11 '14
1 Problem with RSA encryption oct 24 '11