Re: subscript question
- To: mathgroup at smc.vnet.net
- Subject: [mg72049] Re: subscript question
- From: "Steven Shippee" <slshippee at comcast.net>
- Date: Sat, 9 Dec 2006 06:09:59 -0500 (EST)
- References: <ekmeng$8kg$1@smc.vnet.net>
- Reply-to: "Steven Shippee" <slshippee at comcast.net>
Both work fine on version 5.2 as well, for what it's worth. Steven Shippee "dimitris" <dimmechan at yahoo.com> wrote in message news:ekmeng$8kg$1 at smc.vnet.net... > mat = Table[Subscript[x, i, j], {i, 1, 3}, {j, 1, 3}]; > > Something like > > Apply[Plus, mat, 1] > > works fine. > > However > > Tr[mat] > > returns back the command. > > Why? > > Thanks > > Dimitris >