The Alexander Polynomial of a Knot

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This Demonstration computes the Alexander polynomial of an interactively drawn knot and attempts to find knots with the same invariant in the database. When drawing a knot, Alt+Click adds or removes locators and the corresponding line segment or inserts or removes a locator on an existing line segment. Clicking a double point toggles the double point.

Contributed by: Maxim Rytin (March 2011)
Open content licensed under CC BY-NC-SA


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