A trefoil knot
This knot is equivalent to the trefoil knot. You can compare the image with this other, that represents another diagram of the same knot.
The image has been realized with the program KnotPlot.
© matematita
The image belongs to the sections...:
Images from the topology section (From the exhibitions of matematita)
Trefoil knot (Topology)
Further information:
http://www.pims.math.ca/knotplot/
