You have/can get the source, no? I believe the answer is in
R-1.7.1/src/main/array.c. Looks like it depends on what BLAS you have or
don't have.
Andy
> -----Original Message-----
> From: Paul, David A [mailto:paulda at BATTELLE.ORG]
> Sent: Thursday, July 17, 2003 7:14 PM
> To: 'r-help at stat.math.ethz.ch'
> Subject: [R] Matrix Multiplication
>
>
> R1.7.1/Win2k:
>
> Apologies if this posts twice - the first message
> was not in plain text.
>
> I have looked in help.start() and tried typing
> "crossprod" and "%*%" into the RGui to get an idea
> for what R is using as internal algorithms for
> its matrix computations/manipulations... to no
> avail.
>
> Could someone point me in the direction of some
> documentation? All I get for "crossprod" is
>
> function (x, y = NULL)
> .Internal(crossprod(x, y))
> <environment: namespace:base>
>
> Much thanks in advance,
> david paul
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo> /r-help
>
------------------------------------------------------------------------------
Notice: This e-mail message, together with any attachments, ...{{dropped}}