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18 Questions

Views Newest Activity Votes

votes

answer

views

What is a “hanging node” in the finite element meshing?

finite-element mesh-generation

Mar 5 '17 at 21:36 user58 103

votes

answers

views

In FEM, why is the stiffness matrix positive definite?

finite-element matrix stiffness

Nov 28 '15 at 10:01 Kirill 10.8k

votes

answer

131

views

Comments needed on the doubts of PDEs in moving boundary problems

pde elliptic-pde

Aug 17 '17 at 15:44 user21 357

votes

answers

285

views

Interpolation with the roots of orthogonal polynomials & Spectral expansion

interpolation approximation spectral-method special-functions

Apr 29 '16 at 4:56 user123 557

votes

answer

435

views

Using Gauss quadrature for a discontinuous integrand

numerical-analysis quadrature integration

Jan 19 '16 at 11:37 user123 557

votes

answer

191

views

How to show that Gauss-Seidel iterative method is equivalent to successively setting each component of residual vector to zero?

linear-algebra numerical-analysis iterative-method

Dec 10 '17 at 2:20 56th 751

votes

answer

122

views

Regarding impractical usage of direct solvers of linear systems [closed]

linear-solver iterative-method complexity

Nov 20 '16 at 17:10 Daniel Shapero 5,896

votes

answer

135

views

Topics about the deal.II finite element library class “SparsityPattern”

c++ sparse-matrix data-storage deal.ii

Nov 23 '15 at 9:13 James 1,749

vote

answers

180

views

MapReduce with MPI question

mpi

Jun 11 '18 at 14:05 Victor Eijkhout 550

vote

answer

111

views

Questions about iterative projection methods in Saad book

numerical-analysis linear-solver iterative-method krylov-method projection

Mar 5 '18 at 4:04 56th 751

vote

answers

views

MPI_Finalize() only some processors

c++ mpi

Jul 28 '17 at 8:12 user123 557

vote

answers

127

views

How is the dense system usually dealt with in spectral method?

linear-solver sparse-matrix spectral-method dense-matrix

Nov 8 '16 at 9:28 Spencer Bryngelson 813

vote

answer

174

views

How should I determine the number of quadrature points when using Gaussian quadrature integration?

numerical-analysis

Nov 14 '15 at 16:48 Brian Borchers 14.4k

votes

answer

views

Matlab backslash reordering algorithm

linear-algebra matlab linear-solver sparse-matrix banded-matrix

Jan 13 '18 at 2:39 Wolfgang Bangerth 39.9k

votes

answer

views

Need clarification on a piece of book excerpt about spectral element method!

finite-element pde parallel-computing spectral-method dense-matrix

Jul 20 '17 at 14:05 Reid.Atcheson 2,973

votes

answer

281

views

How to plot selection over time for only components, but not magnitute. of a vector in paraview?

plotting paraview

May 25 '16 at 16:06 Coriolis 589

votes

answer

108

views

What should I put on the paper to show the correctness and convergence of my solution?

numerical-analysis convergence error-estimation verification

Mar 4 '16 at 14:18 Bill Barth 9,852

votes

answer

854

views

what is the meaning of mesh smoothing steps in Gmsh?

mesh smoothing gmsh

Feb 24 '16 at 17:57 origimbo 1,984

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18 Questions

What is a “hanging node” in the finite element meshing?

In FEM, why is the stiffness matrix positive definite?

Comments needed on the doubts of PDEs in moving boundary problems

Interpolation with the roots of orthogonal polynomials & Spectral expansion

Using Gauss quadrature for a discontinuous integrand

How to show that Gauss-Seidel iterative method is equivalent to successively setting each component of residual vector to zero?

Regarding impractical usage of direct solvers of linear systems [closed]

Topics about the deal.II finite element library class “SparsityPattern”

MapReduce with MPI question

Questions about iterative projection methods in Saad book

MPI_Finalize() only some processors

How is the dense system usually dealt with in spectral method?

How should I determine the number of quadrature points when using Gaussian quadrature integration?

Matlab backslash reordering algorithm

Need clarification on a piece of book excerpt about spectral element method!

How to plot selection over time for only components, but not magnitute. of a vector in paraview?

What should I put on the paper to show the correctness and convergence of my solution?

what is the meaning of mesh smoothing steps in Gmsh?