ufl team mailing list archive

[Johan Hake <johan.hake@xxxxxxxxx>]

On Tuesday November 2 2010 09:34:04 Kristian Ølgaard wrote:
> On 2 November 2010 17:11, Johan Hake <johan.hake@xxxxxxxxx> wrote:
> > On Tuesday November 2 2010 03:12:09 Kristian Ølgaard wrote:
> >> On 2 November 2010 00:44, Johan Hake <johan.hake@xxxxxxxxx> wrote:
> >> > Hello!
> >> > 
> >> > I am automating the building of a ufl form. Something like:
> >> > 
> >> >  # create list_of_forms
> >> >  my_form = Zero()*dx
> >> >  for form in list_of_forms:
> >> >      my_form += form
> >> > 
> >> > For the for loop to work I need to initate my_form to Zero()*dx,
> >> > because it need to be a form.
> >> > 
> >> > Any other ideas of how this can be done? If this is the only way can
> >> > someone(TM) expose 'Zero' to the main ufl namespace?
> >> 
> >> my_form = reduce(lambda x,y:x+y, list_of_forms)
> >> 
> >> should do the trick.
> > 
> > Thanks for the tip. The loop is a little bit more convoluted than showned
> > here so I will probable stick to using Zero().
> 
> But still you could loop your forms, append to a list and then use reduce?

Sure, but doing it my way saves me one line of code! ;)

Johan

> Kristian
> 
> >> On the other hand, I don't see a problem in exposing Zero in the ufl
> >> namespace, it might be convenient in other cases too?
> > 
> > Thanks!
> > 
> > Johan
> > 
> >> Kristian
> >> 
> >> > It resides in:
> >> > 
> >> >  constantvalue.py
> >> > 
> >> > Johan
> >> > 
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