Re: how to map function with over 1 arguments to list

*To*: mathgroup at smc.vnet.net*Subject*: [mg57215] Re: how to map function with over 1 arguments to list*From*: Gareth Russell <gjr2008 at columbia.edu>*Date*: Sat, 21 May 2005 02:39:28 -0400 (EDT)*Organization*: Columbia University*References*: <d6ka03$168$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

On 2005-05-20 05:17:55 -0400, "xun" <xiaoxun at gmail.com> said: > g[x_]:=x^2; > g/@{1,2,3} results in{1,4,9} > > similarly, how to map f[x_,y_]:=x+y; > to {1,1},{2,2}? > > it seems that f/@{{1,1},{2,2}} doesn't work. Because in the map function you are sending f[] a two-element list when it is expecting two separate arguments. Redefine f[] to expect a list... In[463]:= f[{x_,y_}]:=x+y In[464]:= f/@{{1,1},{2,2}} Out[464]= {2,4}