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An expert is a man who has made all the mistakes, which can be made, in a very narrow field. (Niels Bohr)


Aug
19
revised min-max polynomial approximation with sign definite error
added 35 characters in body
Aug
19
reviewed No Action Needed Do all equilibria in 2 player zero sum games have the same distribution over outcomes
Aug
19
reviewed Reject suggested edit on Prove that the family of open sets in $\mathbb{R}$ has cardinality equal to $2^{\aleph_0}$
Aug
19
reviewed Approve suggested edit on Find $ \lim_{x \to 0^{+}} x^x $
Aug
19
reviewed Approve suggested edit on Find $ \lim_{x \to 0^{+}} x^x $
Aug
19
reviewed Reject suggested edit on Why didn't Fermat provide proofs of his theorems?
Aug
19
reviewed Approve suggested edit on About automorphisms of commutative semigroups
Aug
19
reviewed Approve suggested edit on Integral of Sinc Function Squared Over The Real Line
Aug
19
reviewed Looks OK Find the non-trivial solutions of the diophantine equation: $a^3+3a^2b=c^3$
Aug
19
reviewed Close Intuitive explanation for $\zeta (2)=\frac{\pi^2}{6}$
Aug
19
reviewed Close The art of solving exercise problems
Aug
19
reviewed Close Prove that $133$ divides $11^{n+1} + 12^{2n−1}$ for all $n > 1$?
Aug
19
reviewed Close interval of convergence of $e^x$
Aug
19
reviewed Approve suggested edit on interval of convergence of $e^x$
Aug
19
revised $ d(x,y)^2 \le d(x,z)^2 - d(y,z)^2\color{}{+\varphi\big(x,y,z,d(x,y),d(y,z) \big)}? $
update tags
Aug
16
awarded  Good Answer
Aug
13
reviewed Reject suggested edit on Can I use my powers for good?
Aug
10
reviewed Approve suggested edit on Solving the Riemann Sum $\sum_{i=1}^{n}(1+\frac{6i}{n})^3(\frac{2}{n})$?
Aug
9
comment How can we calculate $(x^x)'$
@AndersKaseorg The recurrence is correct. Both my and yours. Think about the cases $n = 2$ and $n = 3$. What can you say?
Aug
8
reviewed Approve suggested edit on A sum involving Fibonacci numbers, $\sum_{k=1}^\infty F_k/k!$