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: [mg38147] is there any way to differentiate some functions including sigma^2 with respect to sigma^2 not sigma ?
 - From: dykim92 at yahoo.com (Kimberly Damon yamin)
 - Date: Wed, 4 Dec 2002 03:22:55 -0500 (EST)
 - Sender: owner-wri-mathgroup at wolfram.com
 
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