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