## {4,4}, domino 1A1 + domino 1A1, solution 11
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 0')(5 5')(1 4)(2 3')(3 2')(1' 4')")
sublines(1)