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how do I stop the "=" symbol from creating "WolframAlphsShort."...
Asked on 12/17/2020 by user75853
0 answerI want to derive a surface I interpolated which lies in 3D. However my use of Derivative does not seem to work and I don't understand why.What I want...
Asked on 12/17/2020
0 answerI am trying to create a notebook which will graphically display the effect of simple geometric maps, for the purpose of teaching linear algebra. Here is what I thought would...
Asked on 12/17/2020 by David E Speyer
1 answerI have a .dat file and I want to make preferably a density (or surface) plot with it.ListDensityPlot[f, ColorFunction -> "Rainbow", Axes -> False, Background -> Black, ...
Asked on 12/17/2020 by maggie
2 answerI want to solve the chemotaxis mode, given by the next non-linear system: It is taken from Murray's book: equation (11.30) at pag. 408 $$frac{partial n}{partial...
Asked on 12/17/2020 by Vefhug
2 answerI have a directed graph for which I want to reverse the direction of the arrows (not the direction of edges). I don't want to use ReverseGraph because it changes...
Asked on 12/17/2020 by ablmf
1 answerWhen I use Indexed and solve an equation, I get the error message:Solve::itdim The dimensionality of variable p is not well specifiedMy code is:pim[i_, period_] := Indexed[p, {i, "m"}]...
Asked on 12/17/2020 by Somayeh
0 answerI have a question regarding the use of the For[] loop to generate a list of outputs from a function that generates random outputs. Essentially, creating a sample of outcomes....
Asked on 12/17/2020 by user75376
1 answerI have a matrix:A = {{1, 1, 1, 1}, {1, 5, 5, 5}, {1, 5, 14, 14}, {1, 5, 14, 30}}I wrote code in Mathematica (mostly copying what professor...
Asked on 12/17/2020 by Bogus
0 answerI am wondering if there is a simple way to define a structured 3D mesh (inclusion) like e.g. that and surround...
Asked on 12/16/2020
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