Stuck on an issue?
Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.
And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.
Laplace "without" boundary conditions
See original GitHub issueComing from FEniCS, I would like to generate the matrix
dot(grad(u), grad(v)) * dx - dot(n, grad(u)) * v * ds
i.e., the Laplace operator with the boundary rows set to 0.
Any hints?
Issue Analytics
- State:
- Created 2 years ago
- Comments:7 (7 by maintainers)
Top Results From Across the Web
Laplace's equation
The Neumann boundary conditions for Laplace's equation specify not the function φ itself on the boundary of D but its normal derivative.
Read more >Section 9.7 : Laplace's Equation
We will also convert Laplace's equation to polar coordinates and solve ... the boundary conditions are only linear and are not homogeneous.
Read more >No solution to Laplace equation boundary value problem
Since the trivial solution does not satisfy the boundary conditions, it seems like there is no solution to this problem.
Read more >Lecture 24: Laplace's Equation
No initial conditions required. Only boundary conditions. The Laplacian in Polar Coordinates: ∆u = ∂2u ∂r2 + 1 r ∂u ∂r + 1...
Read more >Separation of Variables - Laplace Eq Part 1 - YouTube
We use Separation of Variables to solve the Laplace Equation, including boundary conditions.
Read more >
Top Related Medium Post
No results found
Top Related StackOverflow Question
No results found
Troubleshoot Live Code
Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free
Top Related Reddit Thread
No results found
Top Related Hackernoon Post
No results found
Top Related Tweet
No results found
Top Related Dev.to Post
No results found
Top Related Hashnode Post
No results found
scikit-fem does no reordering. The first matrix looks like some sort of fill-in reducing reordering was applied.
Confirmed working, thanks again!