[PD-dev] list object operators

[Frank Barknecht]

Hallo,
Thomas Grill hat gesagt: // Thomas Grill wrote:

> >Regarding your suggestion of speeding up list-math: What about
> >extending [expr] to handle lists as well? Maybe a new variable could
> >deal with this like $l1, $l2, ..., so that things like this would be
> >possible: [expr $f1 * $l1]. 
> >
> i thought about that, but it's not an option for me, as expr doesn't use 
> the PD license, but GPL.
> Also, extending [list] for a few of the more important operations would 
> be really straightforward.

Maybe both could be done. 

> >I didn't think too much about the best syntax for list-expr yet, like
> >when should the result be a list, when should it be a scalar, how to
> >handle the two kinds of multiplication possible with [expr $l1 * $l2]
> >(inner product with a scalar result vs. element-wise product to a
> >list), what to do with "mixed" lists that also include symbols and
> >gpointers etc., but the basic concept looks very useful to me.
> >
> Concerning the syntax it would probably the best to see how Max is using 
> it - there, lists can readily be used inside expr.

Really? I cannot find anything in my Max45ReferenceManual.pdf about
this. If it is inside expr, then the code maybe is released
somewhere, because of the GPL. Or is Max shipping its own
implementation of expr? 

Ciao
-- 
 Frank Barknecht                 _ ______footils.org_ __goto10.org__