focus - fixed point on the interior of a parabola used in the formal definition of the curve
Free Hyperbola Calculator - Given a hyperbola equation, this calculates:
* Equation of the asymptotes
* Intercepts
* Foci (focus) points
* Eccentricity ε
* Latus Rectum
* semi-latus rectum
Free Parabolas Calculator - Determines the focus, directrix, and other related items for a parabola.
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