It is the locus of points equidistant from a focus and directrix, and is produced when a plane intersects a right circular cone.
The solution of the Poincaré conjecture via Ricci flow requires a general solution of a partial differential equation of this kind. An aberration known as a coma occurs in reflectors of this shape. The hyperbolic version of its three-dimensional analog is shaped like a saddle, and rolling it along a straight line produces a catenary curve. It is the locus of points equidistant from a focus and directrix, and is produced when a plane intersects a right circular cone. For 10 points, name this conic section with an eccentricity of 1, the shape of curves like y = x2.
The solution of the Poincaré conjecture via Ricci flow requires a general solution of a partial differential equation of this kind.
{parabola} [or word forms like {parabolic}]