## {3,7}, triangle 1R + diamond 1A2, solution 1
h2.
angleunit(2*pi/7)
# the line below lets us specify internal angles
angleofs(pi)
distunit(edge(3,7))
unittile(1,1,1)
unittile(1,2,1,2)
unittile(1,1,1)
# the Conway notation
conway("(0 0')(1 0')(2 0')(1' 0'')(1' 1'')(1' 2'')(2' 3')")
sublines(1)