First input the number of components your link is to have.
Use Left mouse button to make the vertices of your link. Left or Right mouse button to make crossings - the program prompts with a beep. Finally press C to close the loop.
To modify a tangle select an area with the left mouse button: click on the vertices. Then right mouse button (not C this time) to close the loop.
To join two cut ends: click on an end then make new vertices by left clicking to get an extension of the end. When ready to close press C then click on a second end to join up. Repeat this procedure until all cut ends are joined up. The beeping is to tell you to choose either over or under - easiest to click any button after a beep then put it right afterwards.
WARNING: The polynomials produced for links with more than one component do not agree with polynomials defined in the course. ie the program works for knots only. The coefficients of the Jones polynomial are displayed in descending order. The coefficient in square brackets is the constant coefficient.
Output of last line of prog:
V''(1), det=|Alex(-1)|, V(i) determines Arf, V(exp(i*Pi/3)),