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$Sigma$ is the upper side of the surface $x^{2}+y^{2}+4 z^{2}=4(z geq 0)$, now we need to calculate the value of $iint_{Sigma} sqrt{4-x^{2}-4 z^{2}} d x d y$...
Asked on 10/03/2021
1 answerI am interested in an efficient code to generate an $n$-D Gaussian random field (sometimes called processes in other fields of research), which has applications in cosmology. AttemptI...
Asked on 10/03/2021
5 answerI want to plot a density curve but when I draw the y-axis not getting to 1 (as normalized) Subscript[a, p]=0.428;Subscript[[Alpha], p] =1.04;R = 2.45;Subscript[[Rho], p1][r_] = Subscript[[Rho],...
Asked on 10/03/2021
1 answerI have Mathematica 11.1 and Windows 10 OS. I need to use c based compilation inside Mathematica, like Compile[..., CompilationTarget -> "C", CompilationOptions -> {"InlineExternalDefinitions" -> True}]. To do this,...
Asked on 10/03/2021
1 answerHey could you help me solving this matrix of linear ODEs. This exercise comes from the book "Transport Phenomena" by Byrd, Stewart and Lightfoot [23.D.4]. I managed to get this...
Asked on 10/02/2021
1 answerI have tried both, NDSolve and ParametricNDSolve, to tackle the following problem without success. I have looked at 2 other SE posts (here and here) that seem similar...
Asked on 10/02/2021 by ConservedCharge
2 answerSo I want to obtain a inverse Laplace transform from mathematica but I get this: How can I get the solution?...
Asked on 10/02/2021 by Francesco Camussoni
1 answerBased on @xzczd's excellent answer on solving an equation system with unknown functions defined on different domains, I've tried to apply the same technique to a similar system shown...
Asked on 10/02/2021
2 answerI have a list of integers dims and a list of SparseArrays bdrs (representing a chain complex $mathbb{Z}^{d_0}overset{partial_1}{leftarrow}mathbb{Z}^{d_1}overset{partial_2}{leftarrow}mathbb{Z}^{d_2}leftarrowldots$). I wish to import/export such data from/to a...
Asked on 10/02/2021
1 answerI'm trying to recreate a graph from a paper, and the function that I'm plotting involves three separate parabolic cylinder functions that all have a complex Nu value. After getting...
Asked on 10/02/2021 by PewtDmD
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