A torus knot
A torus knot of type (2,5): the number 2 means that the knot meets twice any meridian of the torus; the number 5 represents the intersection of the knot with any parallel of the torus.
See also the interactive animation Two numbers for a knot.
© matematita
immagine di Gian Marco Todesco
The image belongs to the sections...:
Knots described by two numbers (Topology)
Further information:
http://www.toonz.com/personal/todesco
