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For a given Blackbox interpolation function f[x] examplaryf = Interpolation[Table[{x, Cos[x]}, {x, 0, 2 Pi, 2 Pi/20}]] (*f[x]*)I would like to rescale the functioneps=0.9;fn=eps f[#/eps]&; (*fn[x]:= eps f[x/eps]*)which...
Asked on 12/22/2020
2 answerBug introduced in 11.3 or earlier, Fixed in 12.2.0NearestNeighborGraph generates incorrectly formatted output on rasterized input. Reported to Wolfram support CASE:4093797$Version(* "11.3.0 for Mac OS X x86 (64-bit)...
Asked on 12/21/2020 by Rohit Namjoshi
2 answerOk, so here is example code:Clear[p, flag, k];p = 2;k = 1;flag = True;If[flag, p, k] = 0;pAfter that I get the messageSet::write: Tag If in If[True,p,k] is...
Asked on 12/21/2020 by Saeki Amae
3 answerI am working with xAct / xCoba / xTras and I would like to construct a matrix out of a vector.So, I have a vector V on a manifold...
Asked on 12/21/2020
0 answerBug introduced in 4.1 or earlier and persisting through 12.2.0. or laterTo the problem below, I get four independent, incomplete solutions, three in terms of Solve`DirInf[]. Since DirInf...
Asked on 12/21/2020 by Michael E2
1 answerI'm studying a system of stochastic equations and I would like to specify the covariance between the Wiener processes appearing in each. The Mathematica help's page for ItoProcess indicates that...
Asked on 12/21/2020 by Eric Bittner
0 answerSomewhere in the following code there is a bug. The result should not be zero!FunctionExpand@HankelTransform[Sqrt[r] Cos[r], r, k, 1/2]I think the answer should be undefined or a message like...
Asked on 12/21/2020 by SolutionExists
0 answerI am trying to import the "Patient Medical Data for Novel Coronavirus COVID-19" dataset from the Wolfram Data Repository, but when I import, it shows me just 427036 results instead...
Asked on 12/21/2020 by Anto
1 answerWhen working with a Compile function I can specify if a given argument is a matrix, a vector or a scalar. For instance, something like:fC=Compile[{{x,_Real,2},{y,_Real,2},{a,_Real}},a x^2+y^2];Is there a way...
Asked on 12/21/2020
1 answerLately I've been learning more about the Wolfram Language, and I've become particularly enamored with the stated goals of the Mathematica notebook interface. I've used Mathematica exclusively as a "super...
Asked on 12/20/2020 by sferics
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