Re: newbie question: generic derivatives
- To: mathgroup at smc.vnet.net
- Subject: [mg41598] Re: [mg41563] newbie question: generic derivatives
- From: Bobby Treat <drmajorbob+MathGroup3528 at mailblocks.com>
- Date: Wed, 28 May 2003 04:57:29 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
D[f[y[x], y'[x]], x] Bobby -----Original Message----- From: =?ISO-8859-1?Q?Eduardo_Su=E1rez?= <bardino at mail.com> To: mathgroup at smc.vnet.net Subject: [mg41598] [mg41563] newbie question: generic derivatives 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