## {4,4}, domino 1A2 + domino 1A2, solution 1
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)(2)(1 1')(3 0')(5 2')(4 4')(3')(5')")
sublines(1)