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In my simulations I am using dense matrix-vector multiplications and 2D-fft transformations quite often, for matrix sizes of 8kx8k and up. Hence, I assume that using a GPU is beneficial...
Asked on 07/10/2021
2 answerIn many situations in unstructured mesh solvers, one needs to compute gradient of arbitrary variable $phi$ such as temperature or velocity at face centers (one of such situations is...
Asked on 07/10/2021
1 answerUsing FEM, I want to approximate the Laplacian $$u = nabla cdot nabla h , ,$$ where $h(x,y)$ is an FEM approximated scalar field on the same mesh,...
Asked on 07/09/2021 by pimpom
0 answerI have a background image of a fractal on my phone that I would like in a higher resolution with super sampling, and decided to write my own program for...
Asked on 07/08/2021
1 answerI have been working on a solver for shallow water equations with reflective boundary conditions. I have found that it diverges very fast. As a workaround I noticed yesterday that...
Asked on 07/07/2021
1 answerI want to plot $$f_{n}(x) = begin{cases} x-n & text{for } n leq x leq n+1 ...
Asked on 07/06/2021 by user664
6 answerI don't have almost any experience in data modelling so I would really appreciate any input!I have to fit some models to my data - below you see the...
Asked on 06/30/2021 by Isquare1
0 answerSuppose I know the expected sparsity of a matrix (i.e. the number of non-zeros / total possible number of non-zeros). Is there a rule of thumb (perhaps approximate) for deciding...
Asked on 06/30/2021 by josh_eime
3 answerI am trying to self-learn SciPy and evaluate the following quadruple integral using scipy.integrate.nquad: $$int_{0}^{1} int_{0}^{1} int_{0}^{1} int_{0}^{1-x} (w+y) :dz :dy :dx :dw $$ I wrote...
Asked on 06/28/2021
1 answerI set out to solve the time harmonic Maxwell equation numerically which was discritzed using FEM and with the use of Nedelec elements as basis and test functions. The equation...
Asked on 06/28/2021 by CuteCompute
2 answerGet help from others!
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