How about [ sum 100 = ] filter
On Jun 4, 2013 9:57 PM, "graham telfer" <gakouse...@hotmail.com> wrote:
>
> Maybe happiness! Perhaps the math.combinatorics vocabulary has what I
need.
>
> Sent from my iPad
>
> On 5 Jun 2013, at 12:45, "graham telfer" <gakouse...@hotmail.com> wrote:
>
> > I am trying to define a word; bagof which will collect subsequences of
values that satisfy some constraints.
> >
> > : bagof ( seq -- set-of-sub-sequences )
> > constraints-to-satisfy collect-the-sub-sequences ;
> >
> > Constraints might be anything but for example at the moment I want to
collect the bag of integers for which the sum = some value. I would like to
define the summing constraint using something like sum or foldl/r or reduce
with map but I can't find a way to halt the summing process midway and test
the constraint or repeat the function to build the outputs set.
>
>
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