Dear Deepak,

Its possible that the initial implementation of the functionality has 
changed, and that this part of the documentation was accidentally not 
updated. As best as I can tell, this sentence is referring to the default 
case where q_index and fe_index are not going to be prescribed (in which 
case, the indices for FECollection and QCollection should match). Would you 
please open an issue on the GitHub page clearly indicating where the 
problem is? Better yet, would you like to update the documentation yourself 
and submit a pull request for your changes?

Regards,
J-P

On Friday, July 22, 2016 at 5:50:05 PM UTC+2, Deepak Gupta wrote:
>
> Dear Simon
>
> Thanks for the reply. I was guessing the same, but then this sentence from 
> the documentation seems a bit ambiguous. Isn't it? "*The quadrature rules 
> have to be added in the same order as for the FECollection 
> <https://www.dealii.org/8.4.1/doxygen/deal.II/classhp_1_1FECollection.html> 
> for which this quadrature rule collection is meant.*"
>
> Best
> Deepak
>
> On 22-07-16 17:46, Simon Sticko wrote:
>
> Hi,
> When you call reinit on hp::FEValues you can send in which of the elements 
> in the collection you want to reinitialize with.
> That is, when you call reinit you call it as 
>
> fe_values.reinit(cell, q_index, mapping_index, fe_index);
>
> where the additional integers specify which element in the collections you 
> want to use.
>
> /Simon
>
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> Deepak K. Gupta
>
> PhD Candidate/Researcher 
> Structural Optimization & Mechanics
> TU Delft / Precision & Microsystems Engineering
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>
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