[Getfem-users] specification of Grad expression

[Tetsuo Koyama]

Dear GetFEM++ Project

Sorry to ask many question.
I want to ask about regular expression.
When using "Grad_" in regular expression in 3D MeshFem. It seems that
it create 3D tensor. My question is that the meaning of line and
column.
In my forecast, the line is the direction of variable and column is
the direction of gradient. Is it correct?
Is there any related part in the document?
Thank you for reading.

Best Regard Tetsuo.