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MathGroup Archive 1999

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Re: F[f_,x_]:=f[x] ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19857] Re: [mg19819] F[f_,x_]:=f[x] ?
  • From: "Andrzej Kozlowski" <andrzej at tuins.ac.jp>
  • Date: Sun, 19 Sep 1999 01:20:41 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

As far as I know it has no name...But it does not need one:

In[7]:=
#1[#2] &[f, x]
Out[7]=
f[x]

In[8]:=
Outer[#1[#2] &, {f, g}, {x, y}]
Out[8]=
{{f[x], f[y]}, {g[x], g[y]}}
--
Andrzej Kozlowski
Toyama International University
JAPAN
http://sigma.tuins.ac.jp
http://eri2.tuins.ac.jp


----------
>From: p_mclean at postoffice.utas.edu.au (Patrick McLean)
>To: mathgroup at smc.vnet.net
>Subject: [mg19857] [mg19819] F[f_,x_]:=f[x] ?
>Date: Fri, 17 Sep 1999 01:37:00 -0400
>

> What is the name of the in-built Mathematica function that plays the role
> of F in te following:
>
> F[f_,x_]:=f[x].
>
> For example,
>
> Outer[F,{f,g},{x,y}]
>
> will give:
>
> {{f[x],f[y]},{g[x],g[y]}}.
>
> --
> Patrick McLean
>
> No news is good news...
> 


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