       Re: How to extract functions from a list and call them with any argument?

• To: mathgroup at smc.vnet.net
• Subject: [mg65927] Re: [mg65919] How to extract functions from a list and call them with any argument?
• From: "Carl K. Woll" <carlw at wolfram.com>
• Date: Mon, 24 Apr 2006 06:01:18 -0400 (EDT)
• References: <200604231017.GAA11838@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```dmp55 at sympatico.ca wrote:
> 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:=funclist[]
> Out=Sin[x]
>
> , but I don't know how to call these functions with a general argument.
> If I type
>
> In:=funclist[t][]
>
> , I get
>
> Out=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

Sounds like you want to convert the functions in the list to pure
functions. Here is a method to do so:

In:= f3 = Function[{x}, #]&[ funclist[] ]

Out= Function[{x}, (Cos[x])^2]

Lets see if it works:

In:= f3

Out= (Cos)^2

Carl Woll
Wolfram Research

```

• Prev by Date: Re: How to remove extra empty lines generated when exporting to HTML?
• Next by Date: Width of plots
• Previous by thread: How to extract functions from a list and call them with any argument?
• Next by thread: Re: How to extract functions from a list and call them with any argument?