## {4,4}, square 1R4 + domino 1R
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,1,1,2)
# the Conway notation
conway("(0 0')(1 3')(2 0')(3 3')(1' 2')(4' 5')")
sublines(1)