## {3,3}, triangle 1S + triamond 1S
s2.
angleunit(2*pi/3)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(3,3))
unittile(1,1,1)
unittile(2,2,2)
# the Conway notation
conway("(0 0')(1 1')(2 2')")
sublines(1)