The equation below is the general polar form for a conic section.

When E = 0, it reduces to a circle.

When 0 ≤ E < 1 it is an ellipse.

When E = 1, it is a parabola.

For E > 1, it is a hyperbola.

r=l/(1-(E*cos(theta)))

l=slider([0,10])

Graph of the formula

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