## {4,5}, square 1R4 + square 1F
h2.
angleunit(2*pi/5)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(4,5))
unittile(1,1,1,1)
unittile(1,1,1,1)
# the Conway notation
conway("(0 0')(1 0')(2 0')(3 0')(1')[2' 3']")
sublines(1)