n(th) Derivatives of unknown Functions
- To: mathgroup at smc.vnet.net
- Subject: [mg4661] n(th) Derivatives of unknown Functions
- From: von_Aschen at uni-duisburg.de (Harald von Aschen)
- Date: Thu, 22 Aug 1996 03:55:14 -0400
- Organization: Gerhard-Mercator-Universitaet GHS Duisburg Germany
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
Consider F to be an unknown function. I would like to solve
d^s / dx^k F[2 x - a]
(a is a constant, F a function with real numbers as input and real
numbers as output, (no vectors)).
With
D[ F[2 x - a], {x, s} ]
as Mma-Input I don't get the result
(s)
2^s F [2 x - a]
Is there any way to work around? Thanks for an answer!
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