Re: F[f_,x_]:=f[x] ?
- To: mathgroup at smc.vnet.net
- Subject: [mg19886] Re: F[f_,x_]:=f[x] ?
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Sun, 19 Sep 1999 18:47:35 -0400
- References: <7rsi9t$3im@smc.vnet.net> <7s1ppu$9o4@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Tim Dellinger <tdelling at ews.uiuc.edu> wrote in message news:7s1ppu$9o4 at smc.vnet.net... > p_mclean at postoffice.utas.edu.au (Patrick McLean) writes: > > >What is the name of the in-built Mathematica function that plays the role > >of F in te following: > > >F[f_,x_]:=f[x]. > > > I think you're looking for Apply[]. > > > -- > Tim Dellinger www.ews.uiuc.edu/~tdelling > tdelling at uiuc.edu > {Apply[f, x], Apply[f, g[x]]} {x, f[x]} But Apply[f, {g[x]}] f[g[x]] Map[f, g[x], {0}] f[g[x]] I notice that Steven Skiena uses the first form in the Combinatorica package. -- Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK www.haystack.demon.co.uk hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565