Redefine grad operator (not transpose)
Registered by
Anders Logg
The current definition of grad of a vector returns du_j / du_i. This does not seem to be the standard definition in most literature I seen. It also means that grad is not a derivative since u(x + dx) \approx u(x) + grad(u) dx fails.
I suggest we change the definition to be grad(u) = du_i / du_j.
Blueprint information
- Status:
- Complete
- Approver:
- None
- Priority:
- High
- Drafter:
- None
- Direction:
- Needs approval
- Assignee:
- Anders Logg
- Definition:
- Approved
- Series goal:
- None
- Implementation:
-
Implemented
- Milestone target:
-
0.4.1
- Started by
- Anders Logg
- Completed by
- Anders Logg
Related branches
Related bugs
Sprints
Whiteboard
This has now been implemented. Watch out for any strange behavior.
(?)
