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I have codef[x_] := x^3;df[x_] = f'[x];tan[x_, x0_] := f[x0] + df[x0] (x - x0)With[{x0 = 1}, NSolve[tan[x, x0] == f[x], x]]With[{x1 = -2}, NSolve[tan[x, x1] == f[x], x]]Module[{x,...
Asked on 05/31/2021
2 answerI want to save my time doing second quantization calculation, so I tried to install SNEG package. (http://nrgljubljana.ijs.si/sneg/) But in the website I only founnd ways to...
Asked on 05/31/2021 by Rosetta
1 answerI have a list of list of positive integers $s = {s_1, s_2, ..., s_k}$, each list $s_i$ is possibly of different lengths, and I want to find...
Asked on 05/31/2021
4 answerNow I have a function, say $f(k,z)=e^{-kz}(1+kz)$ I want to find the $n$th $log$ derivative with respect to z.like $(zpartial_z)^{(n)}f(k,z)$ (or $(partial_{ln z})^{(n)}f(k,z)$if you like), where the $(n)$...
Asked on 05/31/2021 by Siyi Zhou
3 answerUsing the problem from my previous question link. For each n, that is n= $10^3$ to $10^6$ with a ten-fold increase, how do I use Chebyshev Bias...
Asked on 05/31/2021 by complab56
0 answerIs there a way to take a matrix and select the rows (or columns) with norm lesser than a certain amount max. Thanks...
Asked on 05/31/2021
1 answerCopy the following code, and create new 0 byte file, and paste the code and save it to TEST.nbNotebook[{Cell[BoxData[ RowBox[{"a", "[CircleMinus]", "b", "[CircleMinus]", "c", "[CircleMinus]", "d"}]], "Input",...
Asked on 05/30/2021
0 answerI am trying to solve the Stokes equation for fluid flow in a 3d cylinder. All boundaries are no-slip, apart from the top boundary, which enforces flow in the x-direction....
Asked on 05/30/2021 by Oscillon
2 answerI have two supposedly homogeneous equations. Solve gives a trivial solution for them. Is there any way in Mathematica to extract non-trivial solutions for this system. The equations are:eq1...
Asked on 05/30/2021 by Avrana
0 answerI want to draw Geometry (or contours) for multivariate Gaussian distribution with identity covariance matrix (or draw decision boundary). How this is possible via Wolfram's online at ...
Asked on 05/30/2021 by user355834
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