n=8: 1925 reachable points of length <= 60, 596 classes of parallel directions
  class of alpha=0.042426: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=2.276634: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.090847: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.610990: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.482320: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=2.038209: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=2.020523: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
  class of alpha=0.382079: floating billiard finds 2 of the 2 (length, factor) pairs of the unfolding, none else
bands computed: 7140 (rays from O, both sides); largest number of segments of a simple preclosed piece: 158
even n: every factor divides n/2; classes by (class name of Sect. 1 of the source, factors in the order of increasing preclosed length, ratios of the preclosed lengths):
  even  factors (4, 4)       ratios (1.0, 2.41421)               classes: 136
  odd   factors (2, 1)       ratios (1.0, 1.41421)               classes: 460
DONE n=8 [4.1s]
