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I have a question about implementing traction boundary conditions in 2D and 3D linear elasticity. Consider the picture above. I...
Asked on 12/10/2021
1 answerThis was so much easier in Python (so much so that I'm considering going back to matplotlib for data analysis). But really, trying to figure out ROOT and Boost...
Asked on 12/04/2021
4 answerI have found a toy implementation of RK-Dopri(4,5), written in Python. I am concerned however, about line 118:y = y + h *...
Asked on 11/30/2021
1 answerI have a short question about Time evolving block decimation (TEBD). During a lecture I was told that this method is very efficient in evolving 1D quantum...
Asked on 11/28/2021
1 answerI have a physical model which takes $sim50$ parameters and gives $sim2000$ outputs taking tens of minutes to run. I need to optimize these parameters to give outputs...
Asked on 11/28/2021
2 answerWhat are the pros of Fourier-Galerkin spectral methods while solving PDEs? Here's the one that came in my mind first:Easy implementation: using this method, differentiation operator computation is really simple...
Asked on 11/23/2021
1 answerI implemented a solver for the 2D steady-state heat equation (without heat generation and homogeneous material) $nabla. (knabla T) = 0$, using finite volume method, however, I am having...
Asked on 11/21/2021
3 answerI apologize in advance if this post is at all ignorant or elementary, I am a pure mathematician who is newly getting into the world of scientific computing. For my...
Asked on 11/19/2021
1 answerI have a point $y in mathbb{R}^d$ and a convex polyhedron $mathcal{P}$ given as the intersection of half-spaces: $$mathcal{P} = {x in mathbb{R}^d mid a_1 cdot x...
Asked on 11/11/2021
1 answerIn FEM classes, it's usually taken for granted that the stiffness matrix is positive definite, but I just can't understand why. Could anyone give some explanation? For instance, we can...
Asked on 11/08/2021
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