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618
bio website mrcactu5.herokuapp.com/…
location New York, NY
age 29
visits member for 3 years, 7 months
seen 11 hours ago

Data Scientist @ Explorer Media


Jun
16
reviewed Approve suggested edit on Centre of $GL(n,\mathbb{R})$
Jun
15
comment Cauchy's generalized Mean Value Theorem: Intution
math.stackexchange.com/questions/114694/…
Jun
15
asked Log concavity of binomial coefficients: $ \binom{n}{k}^2 \geq \binom{n}{k-1}\binom{n}{k+1} $
Jun
15
comment Does the shift operator on $\ell^2(\mathbb{Z})$ have a logarithm?
Does it meatter that shift map $S$ is not compact?
Jun
14
comment $\int_0^1\frac{f^2(t)}{t(1-t)}dt \leq \frac{1}{2}\int_0^1 f'(t)^2 dt$
$\displaystyle \lim_{t\to 0^+} \frac{f(t)}{t} = \lim_{t\to 0^+}\frac{f(t)-f(0)}{t-0} = f'(0) $ this number exists since $f \in C^1([0,1])$.
Jun
14
comment Airy differential equation and Galois group
One of Lie’s motivations for studying Lie groups was to extend Galois theory to differential equations, by studying the symmetry groups of differential equations. notes
Jun
14
revised $\pi^4 + \pi^5 \approx e^6$ is anything special going on here?
added 208 characters in body
Jun
14
revised $\pi^4 + \pi^5 \approx e^6$ is anything special going on here?
more detailed discussion
Jun
14
comment $\pi^4 + \pi^5 \approx e^6$ is anything special going on here?
@AlexanderGruber you see a question mark don't you?
Jun
14
reviewed Reject suggested edit on How do i prove that $A_4$ has a unique Sylow 2-subgroup
Jun
14
reviewed Approve suggested edit on $\pi^4 + \pi^5 \approx e^6$ is anything special going on here?
Jun
14
asked $\pi^4 + \pi^5 \approx e^6$ is anything special going on here?
Jun
13
asked q-analog of vector space dimension
Jun
13
accepted Exact value of $\tan 50^\circ$
Jun
13
comment Exact value of $\tan 50^\circ$
You can still write down roots in cases of Causis irreducibilis, e.g. $x^3 - 15 x + 4 = (x-4)(x - (2+i))(x-(2-i))$.
Jun
13
comment Exact value of $\tan 50^\circ$
I was guessing maybe you take two cube roots in different places.
Jun
13
revised Exact value of $\tan 50^\circ$
added 193 characters in body
Jun
13
asked Exact value of $\tan 50^\circ$
Jun
13
asked Natural Isomorphism: how can $A \otimes B \simeq B \otimes A $ and yet $A \otimes B \neq B \otimes A $
Jun
11
comment Can $S^2$ be turned into a topological group?
what about $SO(3)$ ?