Re: Lists and residue classes

[Justin Walker <justin@mac.com>]

On Nov 13, 2004, at 20:49, Igor Schein wrote:

> On Sat, Nov 13, 2004 at 05:34:00PM -0800, Justin Walker wrote:
> > Hi, all,
> >
> > Two (unrelated) questions:
> >
> > - is there a way to remove an element from a list (t_LIST)?  Pawing
> > through the user's guide didn't provide an explicit answer.
>
> removefromlist(list,index)=List(vecextract(Vec(list),2^length(list)-1 
> -2^index/2))

Thanks.  It would have taken a lot of digging to come up with that (I'm  
not that well-versed in gp's list processing mechanisms).

> But maybe a native function to do just that without converting to Vec
> first should be introduced for the sake of completeness?

I'd have to say yes.

Thanks for your help.

Regards,

Justin

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