Re: How to extract functions from a list and call them with any argument?
- To: mathgroup at smc.vnet.net
- Subject: [mg65932] Re: [mg65919] How to extract functions from a list and call them with any argument?
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Mon, 24 Apr 2006 06:01:30 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
funclist={Sin[x],x^3,Cos[x]^2};
Use Set rather than SetDelayed
Clear[f];
f[x_]=funclist[[1]];
f[2]
sin(2)
or use Evaluate with SetDelayed
Clear[f];
f[x_]:=Evaluate[funclist[[1]]];
f[3]
sin(3)
Bob Hanlon
>
> From: dmp55 at sympatico.ca
To: mathgroup at smc.vnet.net
> Subject: [mg65932] [mg65919] How to extract functions from a list and call them with
any argument?
>
> I have a list of functions, i.e.,
>
> funclist = {Sin[x], x^3, Cos[x]^2}.
>
> I can extract each of the functions, like
>
> In[1]:=funclist[[1]]
> Out[1]=Sin[x]
>
> , but I don't know how to call these functions with a general argument.
> If I type
>
> In[2]:=funclist[t][[1]]
>
> , I get
>
> Out[2]=t
>
> instead of Sin[t] (or t^3 or Cos[t]^2)
>
> What I would like is to extract a function from the list and to call it
> with any argument, as it was defined in a standard way:
> f[x_]:=Sin[x].
>
> Dom
>
>