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seen Oct 21 at 9:21

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Feb
13
answered Expectation of characters in a string
Feb
13
answered $\int_0^{\infty} \lim_{m \rightarrow \infty} x_m \left( \varepsilon \right) e^{- \varepsilon} \mathrm{d} \varepsilon$
Feb
13
comment Constrained maximization problem
Sorry, I meant $\lambda_1=-1/z$ for interior $\alpha$. You get that from the third Lagrangian condition.
Feb
13
answered Probability…coin toss
Feb
13
comment Constrained maximization problem
@user39097: I do not see any trick, but $\lambda_1=-0.5$ it seems from calculations. $\alpha$ also gets eliminated, so perhaps it is not as daunting as you think it is.
Feb
13
answered Representing train schedules in a matrix
Feb
13
answered Constrained maximization problem
Feb
9
comment Expectation conditioned on a sigma algebra
Thanks did! That's has a nice intuition to have on discrete spaces.
Feb
9
accepted Expectation conditioned on a sigma algebra
Feb
9
suggested suggested edit on How to find indefinite integral $\int a^{\frac {1}{x}} \mathrm dx$?
Feb
9
revised Prove that $\mathrm{E}[X\mid A] = \mathrm{E}[X]$ for an event $A$ independent of random variable $X$
minor changes for clarity sake...
Feb
9
suggested suggested edit on Prove that $\mathrm{E}[X\mid A] = \mathrm{E}[X]$ for an event $A$ independent of random variable $X$
Feb
9
asked Expectation conditioned on a sigma algebra
Feb
6
revised Bounding $x^TAx$ when A is not a symmetric matrix
edited tags
Feb
6
awarded  Yearling
Feb
5
comment Bounding $x^TAx$ when A is not a symmetric matrix
Yeah, I was wondering if there was a connection between $Re(\lambda_{min})||x||^2 \le x^TAx \le Re(\lambda_{max})||x||^2$ and $\sigma_{min}||x||^2 \le x^TAx \le \sigma_{max}||x||^2$·
Feb
5
comment Bounding $x^TAx$ when A is not a symmetric matrix
Thanks. Does the bounds using singular values fit somewhere inside the ones I have with eigenvalues? I do not see an easy way as we do not have normal matrices...
Feb
5
revised Bounding $x^TAx$ when A is not a symmetric matrix
added 57 characters in body
Feb
5
revised Bounding $x^TAx$ when A is not a symmetric matrix
added 18 characters in body
Feb
5
asked Bounding $x^TAx$ when A is not a symmetric matrix