martini
Reputation
88/100 score
 Jul 11 answered How many tagged partitions of an interval are there? Jul 11 comment How to prove these 2 matrix problems? You can't divide by $H$, as $H$ is a matrix. The very definition of $f'(A)$ is that it is a linear map and $$f(A+H) = f(A) + f'(A)H + o(\|H\|), \quad H \to 0$$ Now $f(A+H) - f(A) = \Tr(HB)$, now $\Tr(HB)$ is linear in $H$, hence $f'(A)H = \Tr(HB)$. Jul 11 answered How to prove these 2 matrix problems? Jul 11 answered Proof on limit superior and limit inferior of a set Jul 11 revised Proof on limit superior and limit inferior of a set replaced image by TeX. Jul 11 answered E is bounded if and only if every countable subset of it is bounded Jul 11 answered p-norm of a function Jul 11 answered solving the number of boys who are left handed Jul 11 revised solving the number of boys who are left handed replaced image by TeX. Jul 11 answered The equality of gradient between different calculations? Jul 10 reviewed No Action Needed Probability generating function for negative values of random variables? Jul 10 reviewed Reject Alternating Series Divergence Jul 10 reviewed No Action Needed Is this a Fourier transformation? Jul 10 reviewed Approve is bounded partial derivative continous Jul 10 reviewed Approve Alternating Series Divergence Jul 10 reviewed Approve How to create circles and or sections of a circle when the centre is inaccessible Jul 10 reviewed Reviewed Proof that if $a_1=1$ and $a_{n+1}=1+\frac{1}{1+a_n}$ Jul 10 reviewed Approve Binary relation, reflexive, symmetric and transitive Jul 10 answered Integral values and reducibility of fractions Jul 10 answered Integral limit of $\sin(x/n)f(x)$