## {4,4}, pentomino 1S (I), solution 4
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,2,2,2,2,1,1,2,2,2,2)
# the Conway notation
conway("(0 4)(1)(2 3)(5 11)(6 10)(7)(8 9)")
sublines(1)