Re: simple Problem: D[ ]
- To: mathgroup at smc.vnet.net
- Subject: [mg27352] Re: [mg27310] simple Problem: D[ ]
- From: BobHanlon at aol.com
- Date: Wed, 21 Feb 2001 03:17:55 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
f[x_] := x^2; D[f[x], x] 2*x Bob Hanlon In a message dated 2001/2/20 3:20:22 AM, maier1 at sbox.tu-graz.ac.at writes: >I use mathmatica the first time and have a problem with a deriviation: > >in a simple problem: > >f[x]=x^2 >abl=D[f[x],x] > >then Mathematica puts out f[x]' , but not 2 x > >How does it work correctly? >