Re: newbie question: generic derivatives
- To: mathgroup at smc.vnet.net
- Subject: [mg41580] Re: [mg41563] newbie question: generic derivatives
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Tue, 27 May 2003 05:25:29 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
I guess Dt[f[y[x], y'[x]], x] // TraditionalForm is what you want. Andrzej Kozlowski Yokohama, Japan http://www.mimuw.edu.pl/~akoz/ http://platon.c.u-tokyo.ac.jp/andrzej/ On Tuesday, May 27, 2003, at 02:47 pm, Eduardo Suárez wrote: > 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 > > >