Hi,
I am not an expert on SAGE but I was curious about your question and
tried to find an answer. I am curious about better ways to do this.
Anyway, the first thing I found that works is to use maxima's vect
package. For some reason it uses '~' as the cross-product operator.
As an example:
sage: maxima.load('vect')
?\/Users\/mh\/sage\ - 2\.1\.0\.1\/local\/share\/maxima\/5\.11\.0\/share
\/vector\/vect\.mac
sage: maxima('express([1,2,3]~[2,3,4])')
[ - 1,2, - 1]
At some point it would be nice to have a native SAGE way to do this
and other differential form computations; given the developer's
interest in modular forms this probably wouldn't be extremely
difficult.
-M.Hampton
On Mar 30, 4:58 am, "microdev" <[EMAIL PROTECTED]> wrote:
> hello,
>
> I have tried the dot product :
>
> v = (1,2,3)
> v1 = (2,4,6)
> v.dot_product(v1) -> ok
>
> and for the cross product?
>
> thank you for help..
>
> Felix
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