## {4,6}, square 1S2b + square 1A2
h2.
angleunit(pi/3)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(4,6))
unittile(1,1,1,1)
unittile(1,1,1,1)
# the Conway notation
conway("(0 0')(1 3')(2 0')(3 3')(1' 2')")
sublines(1)