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You could set up the software to display f{x}....function for X variables. If you plot the graph of y=sin 2 pi T and X=2 cos pi T , assuming values of T are variable by user input , you get 2 trig curves at right angles to each other giving a lissajous figure. Maybe the software can manipulate and generate parametric equations on the fly. I am not a software designer but have a little background in math

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