n=12: 1883 reachable points of length <= 60, 542 classes of parallel directions
  class of alpha=2.126042: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=1.104744: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=1.113315: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=2.220897: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=0.335708: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=0.222204: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=2.328669: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
  class of alpha=0.278830: floating billiard finds 3 of the 3 (length, factor) pairs of the unfolding, none else
bands computed: 10820 (rays from O, both sides); largest number of segments of a simple preclosed piece: 162
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 (2, 2, 2)    ratios (1.0, 2.73205, 3.73205)      classes: 29
  even  factors (6, 2, 6)    ratios (1.0, 2.73205, 3.73205)      classes: 86
  odd   factors (1, 1, 1)    ratios (1.0, 1.73205, 2.0)          classes: 108
  odd   factors (3, 3, 1)    ratios (1.0, 1.73205, 2.0)          classes: 319
DONE n=12 [6.7s]
