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[Dupront <question149904@xxxxxxxxxxxxxxxxxxxxx>]

Question #149904 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/149904

Dupront gave more information on the question:

 
 I have an additional question regarding integration rules.

 Playing with the c++ hyperelasticity demo, I started running the test
with the largangien element of order 1. Than I tried the element of order 2. I noticed 
that with element of order 2 the assembly phase was really long. 
Looking at the array of quadrature weights in the 
file HyperElasticity.h, the size was 1 in the case 
of elements of order 1 and 125 in the case of elements of order 2.
Why 125 ? I would have expected a smaller number. 
I guess there is something that I don't understand. 
If somebody could be nice enough to help me with that ...

Thanks a lot.


> To: michel.dupront@xxxxxxxxxx
> From: question149904@xxxxxxxxxxxxxxxxxxxxx
> Subject: [Question #149904]: numerical integration
> Date: Mon, 21 Mar 2011 15:15:08 +0000
> 
> New question #149904 on DOLFIN:
> https://answers.launchpad.net/dolfin/+question/149904
> 
> 
> Hello,
> 
>  I would like to know if I can choose an integration rule 
> or if an integration rule is automatically attached to the element I select ?
> In the latter case how can I know which rule it is ?
> 
> Thanks
> Michel
> 
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