product rule for diff



On 1/29/08, Andrej Vodopivec <andrej.vodopivec at gmail.com> wrote:

> How the vector product is differentiated is controlled by a variable
> called vect_cross:

> The vect package should probably set vect_cross to true.

OK by me to change it if you want. Thanks for pointing it out.

Is there a context in which vect_cross=false is really appropriate?
Can we just get rid of vect_cross entirely?

Robert