Re: pure function
- To: mathgroup at smc.vnet.net
- Subject: [mg113704] Re: pure function
- From: Ray Koopman <koopman at sfu.ca>
- Date: Mon, 8 Nov 2010 05:38:21 -0500 (EST)
- References: <ib8cre$2e1$1@smc.vnet.net>
On Nov 8, 12:37 am, Stephan <stschif... at googlemail.com> wrote:
> I have a function that returns a pure function:
>
> In[1]:= getFunc := Module[{a=2}, Function[{x}, a * x]]
>
> In[2]:= f = getFunc
>
> Out[2]= Function[{x$}, a$57 x$]
>
> Is there any way, to have the body of the returned function contain
> the actual _value_ of the local variable a, instead of the _symbol_ ?
>
> So I would like the returned function to be written as
>
> Function[{x$}, 2 x$]
>
> The reason is, that I would like to have a quick way to actually
> see the value instead of digging out the local variable a$57...
Use 'With' instead of 'Module'.