Re: Special Matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg28231] Re: Special Matrix
- From: "Paul Lutus" <nospam at nosite.com>
- Date: Fri, 6 Apr 2001 01:52:42 -0400 (EDT)
- References: <9ah5nq$ps0@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"Yoram Pollack" <syftech at saad.org.il> wrote in message news:9ah5nq$ps0 at smc.vnet.net... > Hello > I am trying to create a "n x n" matrix with "1" in every position exept in > first and last row, and first and last coulumn, where "0" is needed. In > other words: sqare matrix full of "1" sorounded by "0". > What will be the fastest and shortest way to do it? f[n_]:= Table[Sign[Mod[x*y,n-1]],{x,0,n-1},{y,0,n-1}] -- Paul Lutus www.arachnoid.com