RE: Subscripted local variables in Module
- To: mathgroup at smc.vnet.net
- Subject: [mg24028] RE: [mg24003] Subscripted local variables in Module
- From: "David Park" <djmp at earthlink.net>
- Date: Tue, 20 Jun 2000 03:07:40 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
> -----Original Message----- > From: skker [mailto:skker at skker.com] To: mathgroup at smc.vnet.net > Why can't I use subscripted local variables in a Module? > > Module[{x[1], x[2]}, > x[1] = 1; > x[2] = 2; > x[1] + x[2] > ] > doesn't work. I could fix this code by replacing x[1] by x and x[2] by > y. But there is a more serious problem when I want a non-fixed number of > > local variables. > The first argument in a Module must be a list of symbols; x[1] is not a symbol but an expression. It is easy enough: Module[{x}, x[1] = 1; x[2] = 2; x[1] + x[2] ] 3 David Park djmp at earthlink.net http://home.earthlink.net/~djmp/