Program to draw a lift of a hyperbolic pair of pants with geodesic boundary and a geodesic. The length of boundary components can be varied. By Matt Genkin.
THE CAT THAT TURNS HIS PANTS INSIDE OUT WITHOUT LIFTING HIS FEET FROM THE FLOOR (FOLLOWING AN IDEA OF TARA HOLM AND LILA GRECO, FOR MORE ABOUT IT and other topological delights, CLICK HERE)