Re: Subscripted variables and function definitions

*To*: mathgroup at smc.vnet.net*Subject*: [mg65219] Re: Subscripted variables and function definitions*From*: Geico Caveman <spam at spam.invalid>*Date*: Sat, 18 Mar 2006 06:40:42 -0500 (EST)*References*: <dvdida$a26$1@smc.vnet.net> <dve4na$ffg$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Jens-Peer Kuska wrote: > Hi, > > you should use Symbolize[] from the Notation package, if > you need Subscript[_,_] in a function pattern. Thanks for the hint. I will look this up. > > and X[1] is a *function* call to the function X[] > with the arguments 1 while > X[[1]] is the Part[], i.e., the first element of > the value of X, and the value of X should be a list. > You mix up both and that cause your problems. Actually, that was a typo in my post. I am using X[[1]]/(X[[3]]+X[[4]]) and I get what I described. Any ideas ?