On Tuesday, January 10, 2012 2:03:23 PM UTC-8, LFS wrote:
>
> Hi
> I looked around quite a bit but probably not in the right places?
> I found I can define a vector function and how to get its derivative
> vector function.
> Is there a way to get at the component functions and/or a way to
> calculate the magnitude function of rprime?
>
> var ('t')
> r=vector(t,t^2,t^3) # I had to use vector((t, t^2, t^3))
> rprime=diff(r,t)
>
abs(rprime) should give the magnitude.
rprime[0], rprime[1], rprime[2] should give the components.
--
John
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