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I have a question to a physical task in Mathematica. We have this equation of motion: $$mcdotddot{x} = -m(omega_0^2cdot x+(epsilon x^3))=-frac{d}{dx}V(x)$$ For energy of masspoint there is the...
Asked on 05/03/2021
2 answerI've been trying to work my way through this by working through search results like: Data extraction from a picture of a graph Numeric data from a color...
Asked on 05/02/2021 by Inceptionalist
1 answerI am working on a Jacobi/SOR problem with matrix iterations. I have a matrix of size n = 40, 80, however, I cannot get my iterations past 14 before my...
Asked on 05/02/2021 by Cantorexample
1 answerI want to plot the expression formed from numerically calculated Poisson integrals (aka fundamental solutions of heat equation). I can only get numerical values. This question arises from my ...
Asked on 05/02/2021
0 answerI want to connect a line of plot to plot which describe about plot's name, in the following code:Plot[{Sin[x], Cos[x]}, {x, 0, 2*Pi}]Any suggestion? ...
Asked on 05/02/2021 by Abdol Ali
2 answerplease forgive me if this is obvious, but I have some JSON:ExportString[<|"Names" -> <| "Sister" -> "Nina", "Brothers" -> {<|"Older" -> "John","Younger" ->...
Asked on 05/02/2021 by Joe Blow
3 answerCan Mathematica detect constructible numbers? I know it has MinimalPolynomial, but for degrees higher than 4 it's not obvious whether a given polynomial yields a constructible number or not. See:...
Asked on 05/01/2021
1 answerHow can I find h[r] from this equation?I need h[r] or its r derivative.(E^(Derivative[1][h][r]^2/(2*b^2))*Sqrt[r^4*Sin[[Theta][]]^2]*(-(r*Derivative[1][h][r]^2*Derivative[2][h][r]) - b^2*(2*Derivative[1][h][r] + r*Derivative[2][h][r])))/(4*b^2*Pi*r) == 0In fact, the output of Mmais kind of vague....
Asked on 05/01/2021 by Perfect Fluid
1 answerSo I'm doing some operations in Mathematica and I arrive to this expression:Clear[ZC1, s, CC1, ZCR1, R1, KVL1, V1, I1, V2, I2, KVL2, R2, param, a, b, c, d,...
Asked on 05/01/2021
1 answerI have a list like this:{{1,2}, {4,2}, {6,4} ... }I want to replace every second number with a function of that number. For e.g. {{1, Log[2]}, {4,Log[2]}, {6,Log[4]}...
Asked on 05/01/2021 by Eiyrioü von Kauyf
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