Gabriel Landi
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 Nov 14 awarded Popular Question Sep 23 awarded Popular Question Sep 24 awarded Autobiographer Jul 2 awarded Curious Jul 6 awarded Yearling Jan 15 accepted Average distance between random points inside a cube Jan 14 comment Average distance between random points inside a cube Oh! Yeah, I think that is it. The nearest-neighbour distance. I got everything confused. Jan 14 comment Average distance between random points inside a cube I am still confused about where the concentration of points enter. I mean, if $n$ is large, than the average distance between them should be smaller, but I don't see how that enters the calculation. Anyway, thank you for the help. Jan 14 asked Average distance between random points inside a cube Nov 29 comment Solving for the trace of a matrix This is incredible. Thank you so very very much. Nov 29 accepted Solving for the trace of a matrix Nov 27 comment Solving for the trace of a matrix I have come across that manipulation but, unfortunately, it does not remove $\Theta$ so it doesn't really work much. But, in any case, thanks for your help. Nov 27 comment Solving for the trace of a matrix @Berci the matrix $\Theta$ is uniquely determined from the Lyapunov equation. Hence so is $F$. Nov 27 asked Solving for the trace of a matrix Nov 17 comment Reference suggestion: eigenvalues of tridiagonal matrices @Elias Great. Thank you very much. Sep 10 accepted Discrete Analogue of the Fundamental Theorem of Calculus Sep 10 comment Discrete Analogue of the Fundamental Theorem of Calculus Good Point. :) Once again, thank you. Sep 10 comment Discrete Analogue of the Fundamental Theorem of Calculus I see. But isn't this notation misleading? I mean, in continuous calculus you write $d/dx$ to specify the derivative is with respect to $x$. Wouldn't $\Delta_n$ be a more adequate notation? And is this common in difference calculus literature? Anyway, thank you very much for the answer. Sep 10 asked Discrete Analogue of the Fundamental Theorem of Calculus Aug 31 comment Modification of the continuous time Lyapunov Equation The idea in your answer is probably unfeasible, since my system has $n > 200$. Could you point out a reference for this pole-place method? By the way, thanks for the support.