[R] vector normal to a plane

[Wolski]

Hi!
In which library is this function?
I cant find it using help.search() on my R installation.
Eryk

*********** REPLY SEPARATOR  ***********

On 5/28/2004 at 12:22 PM wwsprague at ucdavis.edu wrote:

>Hi All,
>
>(I have a degree in math, but I am too embarassed to ask my colleagues, 
>so here goes:)
>
>I would like to get a vector normal (orthogonal) to a plane formed by 
>two other vectors.  In matlab I do this:
>
>v1 = [.4, .6, .8]; v2 = [.9, .7, .2]; nn = cross(v1,v2) (gives ~[-.48, 
>.65, -.24]
>
>if I do R> cross(v1, v2), I get .94.  Huh?
>
>Thanks for all your help, again.
>
>W
>
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Dipl. bio-chem. Eryk Witold Wolski    @    MPI-Moleculare Genetic   
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