## {4,6}, square 1F + square 1F, solution 13
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 2')(2 1')[3 3']")
sublines(1)