newbie question: generic derivatives
- To: mathgroup at smc.vnet.net
- Subject: [mg41563] newbie question: generic derivatives
- From: bardino at mail.com (Eduardo Suárez)
- Date: Tue, 27 May 2003 01:47:24 -0400 (EDT)
- Organization: http://groups.google.com/
- Sender: owner-wri-mathgroup at wolfram.com
Hello all. I'm new to mathematica and i'm trying to do some partial derivatives. I have y(x) and f(y,y') and would like to get: df/dx=... Is there a way to get a result without defining 'f' and 'y'. I mean df/dx = pf/py y' + pf/py' y''. Thanks in advance, -Eduardo