## {4,4}, square 1R2 + tromino 2A
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,1,2,1,1,3)
unittile(1,1,1,1)
# the Conway notation
conway("(0 1')(2 1')(0'' 6')(2'' 6')(1 2')(3 2')(3'' 5')(1'' 5')(0' 3')(7' 4')")
sublines(1)