Dear All,
I want to do a surface integration which needs to evaluate the gradients of
the solution on the face. The following code does not work
fe_face_values.*get_function_gradients*(solution,
solution_grads);
for (unsigned int f_q_point = 0; f_q_point < n_q_points_f; ++f_q_point)
{
*const Tensor<2,dim,NumberType> &grad_u =
solution_grads[f_q_point];*
* ...*
}
Can anybody give a hint on that?
Thanks,
Michael
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