dSMMatrix := DSMMatrix withNodes: #(#1 #2 #3) edges: #(#(#1 #2) #(#2 #1) #(#3 #1)).
Just as a side remark, but I already stumbled several times over code like the above in Mondrian and Glamour:
I tried to find some #0, #1, ... in Mondrian, but I haven't found some.
Cheers, Alexandre