## {4,4}, domino 1R + domino 1F, solution 6
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')(3 1')(1 0')(4 0')(2 4')(5 4')(2' 3')(5')")
sublines(1)