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I'm using NeumannValue boundary conditions for a 3d FEA using NDSolveValue. In one area I have positive flux and in another area i have negative flux. In theory...
Asked on 06/02/2021 by user1816847
3 answerI am trying to use the code developed by @Alex Trounev here: Numerical solution of an iterative equation for different kind of q. I am not sure how to...
Asked on 06/02/2021
1 answerI'm building a virtual lab exercise in Mathematica. As part of it, I'm using Dynamic to show the students' lab dataset that they store in memory using a ClickPane....
Asked on 06/02/2021
1 answerI am using the RegionPlot function to show contour maps of three expression but I want the white, gray and black colours instead of the default ones. How to change...
Asked on 06/02/2021 by Zied
1 answerThis is the code I'm trying to run:NMaximize[ {k, (a + b + c + d + e + f + g + h + i + j +...
Asked on 06/01/2021
2 answerI am trying to solve a system of equation symbolically. It works fine for 6x6, however for 12x12 system it takes very long and the answers are complex. I am...
Asked on 06/01/2021 by FSK
1 answerI am trying to plot Eigen values of my System Hamiltonian in Mathematica. This is generating very noisy plot.This is my code.ϵ = 0;A[α_, c_, b_, q_] :=...
Asked on 06/01/2021
1 answerI have been trying to solve the following three coupled PDEs where the final objective is to find the distributions $theta_h, theta_c$ and $theta_w$: $xin[0,1]$ and ...
Asked on 06/01/2021
2 answerI have an expressionexpr = 1/2 a E^(-3 I ω t) (E^(3 I ω t)+2 Cos[π x/a]) (1+2 E^(3 I ω t) Cos[π x/a]) Sin[π x/a]^2;expr // TeXForm$frac{1}{2}...
Asked on 06/01/2021
1 answerI want to use the NCAlgebra package to do some simplification on non commutative expressions involving integrals. For example, one such expression would be $$ I=left(int...
Asked on 06/01/2021
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