# HP Prime for All

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hyperbola(Point1, Point2, Point3) or hyperbola(Point1, Point2, Realk)

Draws a hyperbola, given the foci and either a point on the hyperbola or a scalar that is one half the constant difference of the distances from a point on the hyperbola to each of the foci.

hyperbola(GA, GB, GC) draws the hyperbola whose foci are points A and B and which passes through point C.
hyperbola(GA, GB, 3) draws a hyperbola whose foci are points A and B. For any point P on the hyperbola, |AP-BP|=6.