Re: is there any way to differentiate some functions including sigma^2 with respect to sigma^2 not sigma ?
- To: mathgroup at smc.vnet.net
- Subject: [mg38192] Re: is there any way to differentiate some functions including sigma^2 with respect to sigma^2 not sigma ?
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 5 Dec 2002 03:29:28 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <aske0m$kie$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, if v=sigma^2 than d v = 2 sigma d sigma or d sigma= d v /(2 Sqrt[v]) Regards Jens Kimberly Damon yamin wrote: > > I tried to do but I can't. mathematica says sigma^2 is not a valid > variable." > is there any way to do that ? I can do that if I replace sigma^2 with > some variable and then differentiate it with respect to the some > variable not having power term. > > any suggestion will be appreciate !! > > Thanks