doc/info/figures/draw_head_length.mac

   1 load("docdraw.mac");
   2 docdraw2d("figures/draw_head_length",
   3         xrange = [0,12],
   4         yrange = [0,8],
   5         vector([0,1],[5,5]),
   6         head_length = 1,
   7         vector([2,1],[5,5]),
   8         head_length = 0.5,
   9         vector([4,1],[5,5]),
  10         head_length = 0.25,
  11         vector([6,1],[5,5])
  12 )$