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MathGroup Archive 2006

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Re: Derivation of Sums of Functions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64806] Re: Derivation of Sums of Functions
  • From: Jochen Haller <jhaller at gmx.de>
  • Date: Sat, 4 Mar 2006 02:35:17 -0500 (EST)
  • References: <du6nue$5pg$1@smc.vnet.net> <du841h$t25$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

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


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