The -= operation works great! Thanks guys.
Jeremy, I use an application I've developed (github.com/arfc/moltres)
which is built on top of the MOOSE framework.
Alex
On 07/08/2017 04:25 AM, Jeremy Theler wrote:
Does this work for you?
Physical Volume (1) = {1:1000};
Physical Volume (1) -=
> On 8 Jul 2017, at 01:39, Alex Lindsay wrote:
>
> I have a large lattice geometry generated by for loops and extrusion. I have
> a physical volume called "fuel" composed of 841 elementary volumes; addition
> to the physical group is done automatically in the for loops. The