it is not a conic section
it is a Lissajoux curve (PS : as any (sin(At), sin(Bt+phi) with rational B/A)
but (sin(2A), cos(4A)) would be also a Lissajoux curve, but in this case an arc of parabola; (red)
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This post has been edited 1 time. Last edited by mathafou, Yesterday at 9:46 AM