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