Conic Commands Axes Center Circle Circumference Coefficients Conic ConjugateDiameter Curvature Directrix Eccentricity Ellipse Focus Hyperbola Incircle LinearEccentricity MajorAxis Midpoint MinorAxis OsculatingCircle Parabola Parameter PathParameter Perimeter Polar Radius Sector SemiMajorAxisLength SemiMinorAxisLength Semicircle Tangent Type Vertex See also Conic section tools.