## {4,4}, square 1A2 + tromino 1R
e2.
angleunit(pi/2)
# the line below lets us specify internal angles
angleofs(pi)
unittile(1,1,1,1)
unittile(1,1,2,2,1,1,2,2)
unittile(1,1,2,2,1,1,2,2)
# the Conway notation
conway("(0 0')(0 4')(3 6'')(3 2'')(1 1')(1 5')(2 5'')(2 1'')(2' 3')(6' 7')(4'' 3'')(0'' 7'')")
sublines(1)