Re: Simple question
- To: mathgroup@smc.vnet.net
- Subject: [mg11299] Re: [mg11239] Simple question
- From: Des Penny <penny@suu.edu>
- Date: Wed, 4 Mar 1998 01:39:56 -0500
- Organization: Southern Utah University
- References: <199803030411.XAA02337@smc.vnet.net.>
Hi:
I believe this will work for you:
df[f_,x_,n_,x0_]:=(D[f,{x,n}] /. x->x0)
g[t_]:=Sin[t]
df[g[t],t,2,3]
df[g[y],y,1,4]
Cheers,
Des Penny
Anderson Brasil da Silva wrote:
> Hi!
>
> I am a new user of Mathematica and I am having troubles trying to
> create a function FUNC[f,n,p] that returns the value of the n-th
> derivative of f in the point p. My main problem is that I have no idea
> about how to create a function that takes other functions as
> parameters. Besides this problem, when I use Dt[f,{x,n}] I can get the
> derivative, but I can't get the value of this in any specific point (if
> I try something like (Dt[f,{x,n}])[0] it doesn't work).
> Can somebody help me, please?
>
> Thanks in advance,
>
> Anderson Brasil
> anderbrasil@ax.ibase.org.br
>
> ------------------------------------------------------------------------
> "The whole problem with the world is that fools and fanatics are always
> so certain of themselves, but wiser people so full of doubts."
> (Bertrand Russell)
> ------------------------------------------------------------------------
>
- References:
- Simple question
- From: anderbrasil@ax.ibase.org.br (Anderson Brasil da Silva)
- Simple question