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Re: Applying a list of 2D paramters to a mathematica function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg68087] Re: Applying a list of 2D paramters to a mathematica function
  • From: Bill Rowe <readnewsciv at earthlink.net>
  • Date: Sat, 22 Jul 2006 06:24:10 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

On 7/21/06 at 5:37 AM, curry at 192.168.0.101 (Curry Taylor) wrote:

>I have (for simplicity) something like this:

>f[x_, y_] := x+y;

>I want to use this function for a variety of parameters in a list:

>indices = {{a,b}, {c,d}, {e,f}, ..}

>so that I get

>{a+b, c+d, e+f, ..}

>Doing the intuitive thing (for me)

>f /@ indices

>results in

>{f[{a, b}], f[{c, d}], f[{e, f}], ..}

>but what I want is

>{f[a, b], f[c, d], f[e, f], ..}

do the following:

In[1]:=
indices={{a,b},{c,d},{e,f}};

In[2]:=
g@@@indices

Out[2]=
{g[a, b], g[c, d], g[e, f]}

Note, I used g as the function name since I am sure will not like what Mathematica returns when you use f as the function name and the name of a parameter to be supplied to the function.
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