The Gauss' law was solved and its solution on u must be used to compute its gradients. This part was done following the example on point 1.1.9 Computing derivatives in document fenics-manual and by using
The next step is to compute the flux by integrating
The Gauss' law was solved and its solution on `u` must be used to compute its gradients. This part was done following the example on point 1.1.9 Computing derivatives in document `fenics-manual` and by using
```python
grad_u = project(grad(u), VectorFunctionSpace(mesh, "Lagrange", 1))
```
The next step is to compute the flux by integrating
The Gauss' law was solved and its solution on
umust be used to compute its gradients. This part was done following the example on point 1.1.9 Computing derivatives in documentfenics-manualand by usingThe next step is to compute the flux by integrating