Interested in playing around with some mathematical knots? Manuel Arala Chaves of the University of Porto in Portugal has created a table illustrating all 75 knots with up to 9 crossings in their standard representation. If your computer can handle LiveGraphics3D, you can manipulate the knots in three dimensions and look at them from different angles. The instructions are in English and Portuguese.

Go to:

More Stories from Science News on Math

From the Nature Index

Paid Content