ffc team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

Anders Logg wrote:
> I've added support in UFL and FFC for letting quadrature degree be
> None for a quadrature element.
>
> This lets the form compiler choose the quadrature. What currently
> happens is that the degree is counted as 1 

Polynomial degree or 'quadrature degree' (whatever that is)?

(default value controllable
> from the form compiler) and the summed with other functions
> multiplying the coefficient.
>
>   L = v*f*dx
>
> If v is P2, then the total degree will be 2 + 1 = 3, which means the
> quadrature degree chosen by FFC is 3 for that integral and so also
> for the element for f.
>
> Then there seems to be some confusion about the difference between
> quadrature order and degree. At least I'm confused. 

Me too.

Garth

What is the
> difference?
>
> --
> Anders
>
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> FFC-dev mailing list
> FFC-dev@xxxxxxxxxx
> http://www.fenics.org/mailman/listinfo/ffc-dev