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

*To*: mathgroup at smc.vnet.net*Subject*: [mg57225] Re: [mg57205] how to map function with over 1 arguments to list*From*: János <janos.lobb at yale.edu>*Date*: Sat, 21 May 2005 02:39:49 -0400 (EDT)*References*: <200505200844.EAA00690@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

On May 20, 2005, at 4:44 AM, xun wrote: > Hi, all, > > 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. > > Thx. > Xun > > > > In[1]:= f[x_, y_] := x + y; In[4]:= lst={{1,1},{2,2},{3,3}} Out[4]= {{1,1},{2,2},{3,3}} In[9]:= (f[#1[[1]], #1[[2]]] & ) /@ lst Out[9]= {2, 4, 6} This is what you need ? Or did you mean: In[21]:= Total[lst] Out[21]= {6, 6} János

**References**:**how to map function with over 1 arguments to list***From:*"xun" <xiaoxun@gmail.com>