How to use in-sentence of “conic”:
+ A parabola is a conic section.
+ A hyperbola is a type of conic section.
+ The “Elements” also includes works on perspective, conic sections, spherical geometry, and possibly quadric surfaces.
+ For example, a coneconic helix may be defined as a spiral on a conic surface, with the distance to the apex an exponential function of θ.
+ In astrodynamics, under standard assumptions in astrodynamicsstandard assumptions, any orbit must be of conic section shape.
+ Like the other three types of conic sections – parabolas, ellipses, and circles – it is a curve formed by the intersection of a cone and a plane.
+ The conic sections are known at least since 200 BC, when Apollonius of Perga studied of their properties.
