## {4,4}, tromino 1F + tromino 1F, solution 4
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)(1)(2 7)(3 6)(4 1')(5 2')(0' 3')(4' 7')[5' 6']")
sublines(1)