## {4,4}, tromino 1F + tromino 1F, solution 17
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 0')[2 5][3 6'][4 7'](6 5')(7 1')(2' 4')(3')")
sublines(1)