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Re: Derivative[1][x^2] ??

• To: mathgroup at smc.vnet.net
• Subject: [mg29967] Re: Derivative[1][x^2] ??
• From: Ignacio Rodriguez <ignacio at sgirmn.pluri.ucm.es>
• Date: Fri, 20 Jul 2001 03:28:30 -0400 (EDT)
• Organization: UCM
• References: <9j65da$2fg$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

I think D[x^2,x] is the easiest way. If you want to use Derivative, however, you
will have to write

Derivative[1][(#1^2)&][x]

Tim 9-23 wrote:

> I thought I would get the answer which is 2x, but I'm getting (x^2)'.
>
> So my question is, how do I get the program to find the derivative and
> not just re-write it in another form.  What's the command?
>
> My email address is anti-spammed.  Remove the 2 B's after hitting email reply
> if you want to email me.
>
> Tim 9-23

--

Ignacio Rodriguez Ramirez de Arellano
Unidad de RMN
Universidad Complutense
Paseo Juan XXIII, 1
Madrid 28040, Spain

Tel. 34-91-394-3288
Fax  34-91-394-3245
e-mail: ignacio at sgirmn.pluri.ucm.es