KnotPlot is freeware to visualize, manipulate, and physically simulate mathematical knots. Knots can be loaded from a database of almost 1000 knots and links or sketched by hand in three dimensions. Also, knots may be constructed via the Conway notation or using a tangle calculator. A number of special knot types (torus knots, knot chains, Lissajous knots) may be created on the fly.

With KnotPlot new knots can be created from old knots using a number of transformations.

The Mac OS X version, like all versions of KnotPlot, assumes a three button mouse, a workaround for this may be coming some day.

Limitations:

· Some features are disabled.

What's New in This Release: [ read full changelog ]

· Tangle Calculator (30 Nov 05)
· A complete set of Conway polyhedra are now included, see the help page on the tangle calculator control panel.
· Celtic Knotting (26 Oct 05)
· This feature has been available in a hidden form for a long time (over a year), but now it is directly available off of the Sketch panel. Also included are a few example Celtic knot grids.
· TopoICE (26 Oct 05)
· The Topological Interactive Construction Engine (TopoICE) has also been available for some time, but a new and updated version is now included. See below for more information and user manuals.
· KnotPlot Help (26 Oct 05)
· The KnotPlot `help' button finally does something useful! Well, possibly, maybe. Hope it helps!
· Rollers & Sliders (18 Aug 05)
· Rollers now replace sliders in most cases. There are still some issues with rolling outside the useful range, and possibly maybe with some rollers being either too sensitive or not sensitive enough.
· Double clicking on any value field (middle section) of any slider ...