Chris Marshall <[email protected]> wrote:

> Well, I took a look at out default matrix multiply
> in Primitive.pm.  This is the kernel:
> 
>    $a->dummy(1)->inner($b->xchg(0,1)->dummy(2),$c);

Found it in Basic/Primitive/primitive.pd.

What is a .pd file? It looks like a regular Perl file with a lot of PP
everywhere.

Daniel.

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