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Re: Derivation of Sums of Functions


Jochen Haller wrote:
> No, I am looking for an easy construct to solve a problem like this:
> 
> Derivate the sum from t=0 to T over the expression:
> 
> x_t * (k_t - k_(t-1))
> 
> with respect to k_t, where the subscript means the index.
> 
> JH
> 
Hi Jochen,

The following threads may be of interest:

http://groups.google.fr/group/comp.soft-sys.math.mathematica/browse_thread/thread/32e4058ba61f6502/357205d529f01c67?q=derivative+sum&rnum=2&fwc=1

http://groups.google.fr/group/comp.soft-sys.math.mathematica/browse_thread/thread/4ce3ac02c26ba97e/2046ef127f7c5860?q=derivative+sum&rnum=7#2046ef127f7c5860

Best regards,
/J.M.


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