Derivative of Sum
- To: mathgroup at smc.vnet.net
- Subject: [mg47841] Derivative of Sum
- From: "Michal Kvasnicka" <michal.kvasnicka at _NO_ZpaMM-.quick.cz>
- Date: Thu, 29 Apr 2004 00:34:36 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Is Mathematica 5 able to compute the folowing problem:
\!\(S = Sum[\(a\_k\) b\_k, {k, 1, n}]\)
then should be
\!\(\[PartialD]\_\(a\_i\)\ S = b\_i\) but the Mathematica gives 0.
Thanks, Michal