Top Questions

0 votes
0 answers
31 views

Is there a fast matrix-free inverse power iteration?

0 votes
0 answers
17 views

Intel MKL results differ depending on the underlying hardware architecture

0 votes
0 answers
23 views

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

0 votes
0 answers
56 views

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

0 votes
0 answers
13 views

Resampling an irregular time series in scilab

15 votes
5 answers
2k views

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

0 votes
1 answer
31 views

solve_ivp method=ODE23 time step not decreasing in order

1 vote
1 answer
56 views

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

0 votes
0 answers
38 views

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

6 votes
2 answers
233 views

Difficult because non-convex, or some other reason?

3 votes
0 answers
45 views

Iterative Solvers for Linear Least Squares with Integer Constraints

0 votes
0 answers
25 views

Numerically computing time delay between two functions

1 vote
0 answers
94 views

Galerkin projection in AMG

1 vote
0 answers
23 views

How to implement the following SDP with python

0 votes
0 answers
34 views

Extending Matlab's pchip to 2D

1 vote
1 answer
56 views

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

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
123 views

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

6 votes
2 answers
940 views

Implementation of Monte-Carlo Integration

1 vote
1 answer
51 views

Segmentation fault when broadcasting FFTW wisdom with MPI

0 votes
0 answers
18 views

Find clusters with threshold for number of members

1 vote
1 answer
50 views

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

0 votes
0 answers
63 views

Convolution in Fourier space with Python

0 votes
1 answer
44 views

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

10 votes
5 answers
890 views

How to efficiently compute the determinant of a matrix with unknown diagonal entries?

0 votes
0 answers
33 views

Synchronous integration vs asynchronous integration in simulations with complex problems

3 votes
0 answers
83 views

Eliminate variables from a large system of equations

0 votes
0 answers
44 views

Need help with adaptive meshing code

0 votes
0 answers
13 views

Scan of dihedral angle in excited states using Gaussian [closed]

0 votes
0 answers
23 views

Finding neighboring cells using Gmsh API

1 vote
1 answer
109 views

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

1 vote
1 answer
111 views

Different Results for Double Pendulum

1 vote
0 answers
38 views

Using of elastic tangent for structural nonlinear solver

1 vote
0 answers
42 views

Isolating bugs with convergence testing

0 votes
0 answers
44 views

Calculating a 2D Ewald sum for a multipolar expansion

1 vote
0 answers
37 views

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

0 votes
1 answer
42 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?

7 votes
1 answer
175 views

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

1 vote
0 answers
44 views

How to solve ADMM Optimization Problem

7 votes
2 answers
654 views

Poor test functions for optimization

1 vote
1 answer
98 views

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

0 votes
2 answers
72 views

Raman model equations using RK4

6 votes
2 answers
677 views

What is the advantage of using a particular RK Scheme?

1 vote
2 answers
108 views

How to handle non bilinear weak form?

0 votes
1 answer
111 views

Intergrid transfer operator for Discontinuous Galerkin method (multigrid)

0 votes
1 answer
93 views

Generating unstructured finite volume mesh

4 votes
4 answers
203 views

FEM textbooks recommendation

2 votes
0 answers
86 views

Iterative solvers for problems in solid and structural mechanics


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