It should be easier to implement a 2d array using tcl's 1d array. E.g.: set a(1:2) 0 SRM's retransmission timer management is an example. Also see Ousterhout's tcl book. - Haobo On Mon, 24 May 1999, Lori Flynn wrote: > I'd like to make a 2-d array in tcl. I'm trying to use what appear to be > built-in tcl list functions (llength, lindex, concat). Does anyone know > how? > > Thanks, > Lori > >