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8 answers
166 votes
133k views
161 bookmarks
Recommendations for a usable, fast C++ matrix library?
9 answers
29 votes
2k views
11 bookmarks
What is a good way to run parameter studies in C++
2 answers
29 votes
5k views
25 bookmarks
Is Crank-Nicolson a stable discretization scheme for Reaction-Diffusion-Advection (convection) equation?
2 answers
29 votes
13k views
9 bookmarks
Does a tiny determinant imply ill-conditioning of a matrix?
3 answers
27 votes
4k views
23 bookmarks
What is the principle behind the convergence of Krylov subspace methods for solving linear systems of equations?
5 answers
26 votes
7k views
13 bookmarks
What are the main differences between PETSc and Trilinos?
2 answers
23 votes
5k views
16 bookmarks
A good finite difference for the continuity equation
1 answers
21 votes
9k views
18 bookmarks
What is the general idea of Nitsche's method in numerical analysis?
1 answers
20 votes
3k views
15 bookmarks
BDF vs implicit Runge Kutta time stepping
6 answers
18 votes
2k views
6 bookmarks
How to reorder variables to produce a banded matrix of minimum bandwidth?
2 answers
16 votes
3k views
14 bookmarks
Numerically stable way of computing angles between vectors
1 answers
16 votes
252 views
4 bookmarks
Usefulness of elements with mesh-dependent stability
1 answers
14 votes
961 views
7 bookmarks
Are direct solvers affected by the condition number of a matrix?
3 answers
13 votes
10k views
7 bookmarks
Understanding the "rate of convergence" for iterative methods
3 answers
11 votes
349 views
3 bookmarks
What is the current state of the art in solving higher dimensional parabolic PDEs (multi-electron Schrödinger equation)
5 answers
10 votes
8k views
2 bookmarks
C++ library for numerical intergration (quadrature)
2 answers
10 votes
463 views
3 bookmarks
Why do the shape of finite elements matter?
2 answers
10 votes
512 views
8 bookmarks
Where can I find a good reference for the stability properties of several methods of solving parabolic PDEs?
2 answers
10 votes
936 views
4 bookmarks
How much regularization to add to make SVD stable?
2 answers
8 votes
454 views
3 bookmarks
Why does conjugate gradient work with this nonsymmetric preconditioner?
0 answers
8 votes
675 views
2 bookmarks
Numerical implementation of the Dirichlet-to-Neumann map
3 answers
6 votes
421 views
3 bookmarks
How to impose boundary condition with mixed derivatives?
2 answers
6 votes
2k views
4 bookmarks
implementing higher order derivatives for finite element
1 answers
6 votes
268 views
5 bookmarks
Why is the continuous Galerkin Finite Element Method a poor choice for the inverse problem for the Navier-Lame equation?
2 answers
5 votes
208 views
1 bookmarks
Building Gaussian-type quadrature schemes with Zernike polynomials
1 answers
5 votes
199 views
2 bookmarks
Using finite element error estimators for adaptive mesh refinement
2 answers
5 votes
2k views
4 bookmarks
Evaluating the surface integral in an FEM (Finite Elements Method) procedure
2 answers
5 votes
514 views
4 bookmarks
Solving Poisson equation with current BC using FEM
3 answers
5 votes
130 views
4 bookmarks
Naming scientific output files
1 answers
4 votes
286 views
2 bookmarks
Localization of Sub-problems in the Multiscale Finite Element Method