Archived FEniCS QA questions

+4 votes

1 answer

How does FEniCS handle integration over subdomains that do not align with cell boundaries?

asked Nov 11, 2013 by Jan FEniCS User (8,290 points)

0 votes

0 answers

Ipython: cannot close a dolfin plot

asked Nov 9, 2013 by Jan FEniCS User (8,290 points)

+1 vote

1 answer

strange 'out of memory' problem in FEniCS

asked Nov 9, 2013 by xzhao99 FEniCS Novice (270 points)

0 votes

1 answer

How to clear a dolfin::Matrix in C++ programming

asked Nov 8, 2013 by xzhao99 FEniCS Novice (270 points)

+2 votes

1 answer

How and where to use parameters['num_threads']?

asked Nov 7, 2013 by chaffra FEniCS User (1,830 points)

0 votes

1 answer

Is there a mapping of (cell number, local entity) to global edge index?

asked Nov 7, 2013 by timm FEniCS User (2,100 points)

+1 vote

1 answer

Suppress Output

asked Nov 7, 2013 by bobby53 FEniCS User (1,260 points)

+1 vote

1 answer

2 unknowns solved in 2 different subdomains

asked Nov 6, 2013 by mwelland FEniCS User (8,410 points)

0 votes

1 answer

Matrix-free linear solver implementation cpp

asked Nov 6, 2013 by mcarini FEniCS Novice (160 points)

+1 vote

1 answer

Calculating Jacobian with a mixed FunctionSpace of CG and R

asked Nov 6, 2013 by cevito FEniCS User (5,550 points)

+2 votes

1 answer

Integrate field over surface

asked Nov 6, 2013 by ljofre FEniCS Novice (720 points)

0 votes

2 answers

Redefine mesh for a sign distance function such a level surface

asked Nov 6, 2013 by ljofre FEniCS Novice (720 points)

0 votes

1 answer

MeshFunction from MeshValueCollection in a file?

asked Nov 5, 2013 by timm FEniCS User (2,100 points)

+3 votes

1 answer

How does FEniCS integrate an expression?

asked Nov 5, 2013 by franp9am FEniCS Novice (590 points)

0 votes

1 answer

Extract a surface from a 3D mesh and save as a 2D .xml / .pvd with function values applied.

asked Nov 3, 2013 by pf4d FEniCS User (2,970 points)

+1 vote

1 answer

GenericMatrix method is_symmetric

asked Nov 3, 2013 by michele.zaffalon FEniCS Novice (450 points)

+1 vote

1 answer

dot product of two-dimensional expression

asked Nov 2, 2013 by Lollwies FEniCS Novice (230 points)

0 votes

2 answers

Variational formulation in the DG Poisson demo

asked Nov 1, 2013 by franp9am FEniCS Novice (590 points)

+1 vote

1 answer

Source code for a 1.2.0 version

asked Nov 1, 2013 by c-chintaluri FEniCS Novice (180 points)

+1 vote

1 answer

Problem with periodic BC on imported mesh

asked Oct 31, 2013 by Dem FEniCS Novice (160 points)