Top Questions

2 votes
1 answer
70 views

Isolating bugs with convergence testing

1 vote
2 answers
84 views

Monotonicity of Errors with Respect to Step Sizes in Numerical Methods for PDEs

0 votes
0 answers
17 views

Converting large .tif files to zarr arrays

0 votes
1 answer
55 views

Volume change of a deformable cylinder with a uniform spinning angular velocity

1 vote
2 answers
61 views

robustness of geometric predicates in Euclidean vs homogeneous coordinates

6 votes
2 answers
250 views

Difficult because non-convex, or some other reason?

2 votes
1 answer
149 views

Galerkin projection in AMG

0 votes
1 answer
26 views

Second-order quadrangle mesh of a curved surface using Gmsh

0 votes
1 answer
41 views

solve_ivp method=ODE23 time step not decreasing in order

0 votes
0 answers
26 views

How to derive the deformation matrix $F$ of axisymmetric problem?

0 votes
0 answers
52 views

Intel MKL results differ depending on the underlying hardware architecture [closed]

0 votes
0 answers
83 views

Is there a fast matrix-free inverse power iteration?

0 votes
0 answers
78 views

First and second component of fft for circle approximation to periodic curve

0 votes
0 answers
30 views

How to express the inner product of a tensor function using matrix Frobenius inner product

0 votes
0 answers
16 views

Resampling an irregular time series in scilab

1 vote
1 answer
55 views

Segmentation fault when broadcasting FFTW wisdom with MPI

0 votes
0 answers
45 views

Parallel vs Serial computing using Python Qutip. Why is serial faster?

0 votes
0 answers
28 views

Numerically computing time delay between two functions

1 vote
0 answers
25 views

How to implement the following SDP with python

3 votes
0 answers
59 views

Iterative Solvers for Linear Least Squares with Integer Constraints

0 votes
0 answers
34 views

Extending Matlab's pchip to 2D

15 votes
5 answers
2k views

Ensuring IEEE 754 Compliance and Numerical Precision in C++ HPC Projects

0 votes
1 answer
49 views

Would a Co-simulation orchestrator work when a model uses a variable step size integrator

2 votes
0 answers
127 views

Plasma charge conservation for a multi-Euler system - looking for quasi-linear Riemann solver that also resolves slow contact discontinuity

0 votes
0 answers
19 views

Find clusters with threshold for number of members

1 vote
1 answer
58 views

How to Implement Analytical Magnetic Field Equations into a Physics-Informed Neural Network (PINN) in PyTorch?

1 vote
1 answer
52 views

Is there a number base where pi is a rational number? [closed]

0 votes
0 answers
73 views

Convolution in Fourier space with Python

0 votes
0 answers
24 views

Finding neighboring cells using Gmsh API

0 votes
1 answer
46 views

How to modify adaptive step size Runge-Kutta cash karp algorithm for higher accuracy?

0 votes
0 answers
33 views

Synchronous integration vs asynchronous integration in simulations with complex problems

3 votes
0 answers
84 views

Eliminate variables from a large system of equations

0 votes
0 answers
44 views

Need help with adaptive meshing code

1 vote
0 answers
38 views

Using of elastic tangent for structural nonlinear solver

1 vote
1 answer
112 views

Different Results for Double Pendulum

4 votes
1 answer
2k views

2D cross section from 3D surface

0 votes
0 answers
46 views

Calculating a 2D Ewald sum for a multipolar expansion

6 votes
2 answers
942 views

Implementation of Monte-Carlo Integration

1 vote
1 answer
112 views

Is it possible to run a Metropolis Monte Carlo simulation in parallel?

1 vote
0 answers
37 views

Best way to find the meshing with lowest number of elements allowing a max error of 1%?

41 votes
5 answers
35k views

How does the MATLAB backslash operator solve $Ax=b$ for square matrices?

0 votes
1 answer
46 views

numerical schemes for 1D PDE: for smaller grid size there is an increased roundoff error, larger size more truncation, so sweet spot in between?

1 vote
0 answers
45 views

How to solve ADMM Optimization Problem

0 votes
1 answer
93 views

Generating unstructured finite volume mesh

1 vote
2 answers
109 views

How to handle non bilinear weak form?

1 vote
1 answer
98 views

Can I combine the backward and forward euler methods - simialr to modified euler method?

7 votes
1 answer
176 views

Unexpected result when summing sorted (and unsorted) positive floating point numbers

4 votes
2 answers
1k views

Givens rotation vs 2x2 Householder reflection


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