## {4,4}, tromino 1S + tromino 1S, solution 1
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,2,1,1,2,2)
unittile(1,1,2,2,1,1,2,2)
# the Conway notation
conway("(0 2)(4 6)(1 1')(5 5')(3)(7)(0' 2')(4' 6')(3')(7')")
sublines(1)