femDGOperator.

model.

dune_python_configure_bindings.

fix: use eisenstatwalker method instead of directly accessing member

See merge request !47

[fix] update linear tolerance selector when setting tolerance

See merge request !46

Add residual norm to dghelmholtzinverse info dict

See merge request !45

Needs further investigation.

preconditioner, i.e. set new linearization point.