## {4,4}, domino 1F + domino 1F, solution 5
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,1,1,2)
unittile(1,1,2,1,1,2)
# the Conway notation
conway("(0)(1 0')(2 3)(4 5')(5 1')(2' 3')(4')")
sublines(1)