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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)


Jun
13
reviewed Close Is Leibniz's product rule absolutely right?
Jun
10
reviewed Leave Open Find the equation of a parabola which passes through the points $(5,10),(−5,0),(9,−6)$?
Jun
10
reviewed Close Tangent line to a curve with parameter
May
14
reviewed Reject suggested edit on A sequence converges $\iff$ it's Cauchy. Proof of ($\Leftarrow$) (Abbott p 59 t2.6.4)
May
13
reviewed No Action Needed Pi and the sum of reciprocals of primes?
May
13
reviewed Reject suggested edit on Does an integral without an integrand imply the integrand is $1$?
May
13
reviewed Approve suggested edit on One Catalan question
May
13
reviewed Close Composition of covering maps is a covering map if the inverse image is finite.
May
13
reviewed No Action Needed Fourier series, estimate the values of $a_0$, $a_n$ and $b_n$.
May
13
reviewed Close a continuous function $f:(0,2)\to (0,2)$ and $A\subseteq (0,2)$ such that $f$ is not differentiable on $A$
May
13
reviewed Close Examples of $ \sqrt 2$ and $\sqrt[3]{3}$ in nature?
May
13
reviewed Approve suggested edit on Integral inequality for nonnegative functions
May
13
reviewed Looks OK Computing the Frechet derivative of the inverse endomorphism.
May
13
comment Computing the Frechet derivative of the inverse endomorphism.
@user115608 Look on Wikipedia for Neumann series.Use the link of answer!
May
13
revised Computing the Frechet derivative of the inverse endomorphism.
added 37 characters in body
May
12
reviewed Close Convergence of series $\sum_{n=1}^{\infty} \frac{\ln^\beta(n)}{n^\alpha}$
May
12
reviewed Leave Open Does $f$ exist such that $f(1)<0 , f(5)>3 $ and $ f'(x)\le e^{-f(x)}$
May
12
reviewed Looks OK Invertibility of uncertain matrix
May
12
reviewed Approve suggested edit on Showing $U$ open in topological group $G$ $\implies$ $gU$ is open
May
10
reviewed Close Interview Question Asked In yahoo