[Dune] Yet another small question on FieldVectors

[Aleksejs Fomins]

Dear Markus,

Thank you for your answer.
I am sorry for badly formulating my question.

I am trying to evaluate a complicated expression like
M = A*b + C*d, where capital letters are vectors and small are scalars.

The question was whether there was a way of writing this expression 
better than evaluating each component.

Kind regards,
Aleksejs Fomins