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bio website linkedin.com/in/gt6989b
location New York, NY
age 36
visits member for 3 years, 3 months
seen 17 hours ago

Mar
21
comment Is excess kurtosis for a mixture of two normal distributions with the same means and different variances always positive?
@brittUWaterloo I'm sorry, no immediate thoughts on it.
Mar
20
awarded  Tenacious
Mar
20
comment Bound for probability of the intersection of a set of events
@EricTowers you supposedly want something converging to $0$ as $N \to \infty$, like OP's product, which results in $p^N$...
Mar
20
comment How many skew symmetric matrices are possible?
@Sabyasachi of course it must be square. But there is still uncountably infinitely many.
Mar
20
comment How many skew symmetric matrices are possible?
@Sabyasachi $A^T = -A$ (as opposed to "just" symmetric, which is $A^T = A$)
Mar
20
answered How many skew symmetric matrices are possible?
Mar
20
comment Find out when a function has completed one revolution about the origin
You could try projecting the position of the body onto the $xy$-plane, say, and then find the angle of the projection to the origin in the $xy$-plane. Then you could run a root finder (something like Bisection Algorithm) looking for the first value of $f$ above your starting angle.
Mar
20
answered Median $\neq$ Expectation
Mar
20
answered sum up to nth term with fraction in the power
Mar
20
answered Help with integral with $\arcsin x$.
Mar
20
revised Help with integral with $\arcsin x$.
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Mar
20
revised Using the polar form of $1 + i$ and $\sqrt3 + i$ to deduce $\cos (\frac{\pi}{12}), \sin(\frac{\pi}{12})$
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Mar
20
comment Functional Analysis, $L^p$ spaces
@ChaoukiBenSaid You don't need to compute the integral, just prove that it converges. I would try the substituion $u=x^{1-\alpha p}$ which should transform this to a more familiar $\int \left(1+u^c\right)^{-p} du$, where $c = \frac{\beta-\alpha}{1-\alpha p}$ (plus you have to analyze the case $\alpha p = 1$ separately.
Mar
19
revised Diagonal of a matrix in different basis
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Mar
19
answered Solve a product of binomials raised to a power for x
Mar
19
comment Is $L=\{w\mid \text{ same number of 010 and 101}\}$ regular?
@ThomasAndrews Thanks for the clever edit, I learned of $\mid$. thank you
Mar
19
revised Is $L=\{w\mid \text{ same number of 010 and 101}\}$ regular?
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Mar
19
answered Prove Inverse Function
Mar
19
comment center mass of the solid
Typically, $$ \text{mass} = \iiint_\Omega \rho(x,y,z) dV, $$ where $\Omega$ denotes your region. Please provide some thoughts on the problem. We will be glad to furnish more hints.
Mar
19
revised center mass of the solid
deleted 334 characters in body; edited tags