Indefinite numbers of arguments in a function

*To*: mathgroup at smc.vnet.net*Subject*: [mg87818] Indefinite numbers of arguments in a function*From*: Patrick Klitzke <philologos14 at gmx.de>*Date*: Fri, 18 Apr 2008 02:37:39 -0400 (EDT)

Hello everybody, Is it possible to define a function in Mathematica, where the numbers of arguments does not matter? I know the function Plus is defined like that: I call the function with two arguments( for example Plus[5,3]) or I can call the function with five arguments (for example Plus[1,6,4,6,8]). How can i define a function in Mathematica like that? I know I can define for ever number of arguments a function like that: MyPlus[a_,b_]:=a+b MyPlus[a_,b_,c_]:=a+b+c MyPlus[a_,b_,c_,d_]:=a+b+c+d MyPlus[a_,b_,c_,d_,e_]:=a+b+c+d+e I also know that I can create a list as one argument: MyPlus[list_List] := ( m = 0; For[n = 1, n < Length[list] + 1, n++, m += list[[n]] ]; m ) But since there are functions like Plus, there has to be a way to define those kind of functions. I would be very glad, if someone could give me his advice. Best regards, Patrick Klitzke email: philologos14 at gmx.de

**Follow-Ups**:**Re: Indefinite numbers of arguments in a function***From:*Sseziwa Mukasa <mukasa@jeol.com>