Gabriel Landi
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 Jul 27 comment Approximate solution for the root of a non-linear function Thank you all very much for the support and thank you @LeonidKovalev for the bounty. Jul 27 asked Partial Fractions Expansion of $\tanh(z)/z$ Jul 27 accepted Variation of a simple random walk Jul 26 comment Approximate solution for the root of a non-linear function Yes Mr. Badwaik. I want the first $t_1$ after $t_0$. Jul 25 awarded Scholar Jul 25 accepted Book suggestion for linear algebra “2” Jul 25 comment Distance between discrete random variables Mr. Schmuland, thank you for your answer Indeed, I was interpreting $Y$ as signifying the G's in your answer, thinking they could all be treated as a single variable. Is that impossible? This confuses me: suppose I take the limit of both $n$ and $k$ going to $\infty$, but such that k/n remains fixed. Then $Y$ represents E(G's)? Thank you again for your time. Jul 25 awarded Commentator Jul 25 comment Distance between discrete random variables Hi @joriki. I really appreciate the answer, but not only did I not understand your argument, but computer simulations I have performed also show a clearly non-linear PMF. Also, in your explanation, where does the fact that there has been k draws enter? This is clearly relevant (taking, for instance, the extreme cases $k=1$ and $k=n$). Thanks again for the attention. Jul 25 comment Distance between discrete random variables Yes. Uniformou, Butantã without juxtaposition or the results (not sure what the name for this is) Jul 25 asked Distance between discrete random variables Jul 21 comment Conditions for the equivalence of $\mathbf A^T \mathbf A \mathbf x = \mathbf A^T \mathbf b$ and $\mathbf A \mathbf x = \mathbf b$ Note: $A^TAx=A^Tb$ is more well behaved and perhaps easier to solve. It is symmetric and positive definite (or perhaps semi-definite). Jul 21 asked Book suggestion for linear algebra “2” Jul 19 answered Numerical Methods for Linear Matrix Equation Jul 18 revised Approximate solution for the root of a non-linear function deleted 2 characters in body Jul 18 comment Approximate solution for the root of a non-linear function Oh my! I am sorry Leonid, you are right. My mistake. The RHS may be both pos. and neg. I will correct that in the question. Jul 18 asked A MatrixExp question: simplifying $\int_0^t e^{A(t-t')} e^{A^T (t-t')} dt'$ for a real matrix A Jul 18 awarded Editor Jul 18 revised Approximate solution for the root of a non-linear function added 954 characters in body Jul 18 comment Approximate solution for the root of a non-linear function Hi, I really appreciate the answer. So: only the first root is of interest. The parameters are all positive and have the following usual ranges: \$0