 ### Cone

Sections of a cone. a, parabola; b, ellipse; c, hyperbola. ### Conic Axes

Conjugate diameters perpendicular to each other are called, axes, and the points where they cut the… ### Conic Section Using Hyperbola

The cone is sliced by a hyperbola within a plane. The angle of the hyperbola will make a smaller angle… ### Conic Sections

Conic sections, cones divided by a plane. ### Cone depicting Conic Sections

Diagram of a cone with spheres and cut by a plane to depict the conic sections. ### Cone depicting Conic Sections

Diagram of a cone with inscribed spheres and cut by various planes to depict the conic sections: circle,… ### Construction of a Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. If the focus… ### Focus In Auxiliary Circle of Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. The focus is… ### Focus In Auxiliary Circle of Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. As the focus… ### Hyperbola

One of the three species of conic sections is the hyperbola. ### Generate Hyperbola

Generating a hyperbola from two equal and parallel circular disks. ### Hyperbola

Illustration showing a hyperbola as a curve formed by the intersection of the surface of a cone with… ### Asymptotes of a Hyperbola

Illustration showing the asymptotes of a hyperbola. The asymptotes will never meet the curve. ### Auxiliary Circle and Hyperbola

Illustration of a hyperbola and its auxiliary circle. "Any ordinate of a hyperbola is to the tangent… ### Cone Intersected by a Plane to Form a Hyperbola

Diagram depicting a cone with both nappes intersected by plane J to form a hyperbola. ### Conic Section Hyperbola

Illustration of a cone cut by a plane parallel to the axis of the cone and perpendicular to the vertical… ### Conic Section Showing Hyperbola

Illustration showing the definition of a hyperbola as a conic section. ### Conic Section Showing A Hyperbola

Illustration showing the definition of an hyperbola as a conic section. A hyperbola is formed from a… ### Conic Section Showing A Hyperbola

An illustration showing the intersection of a plane and a double cone. The cone is intersected by a… ### Conjugate Axis of a Hyperbola

Illustration showing how the a hyperbola is symmetrical with respect to its conjugate axis. ### Hyperbola Conjugate Diameters

Any two conjugate diameters of an hyperbola are harmonic conjugates with regard to the asymptotes. ### Construction of Hyperbola

Illustration showing how a hyperbola con be constructed by points, having been given the foci and the… ### Construction Of A Hyperbola

An illustration showing how to construct a hyperbola by plotting. "Having given the transverse axis… ### Construction Of A Hyperbola

An illustration showing how to construct a hyperbola by a pencil and a string. "Having given the transverse… ### Demonstration of Hyperbola Definition

Illustration showing the definition of an hyperbola. "An hyperbola may be described by the continuous… ### Foci Distance of Hyperbola

Illustration of a hyperbola with distances to foci drawn. "The difference of the distances of any point… ### Line Bisecting Angle Between Focal Radii in Hyperbola

Illustration of a hyperbola with a line bisecting the focal radii. "If through a point P of an hyperbola… ### Point on a Hyperbola

Illustration of a point on a hyperbola. "If d denotes the abscissa (x-coordinate) of a point of an hyperbola,… ### Tangent to Hyperbola

Illustration showing how to draw a tangent to an hyperbola from a given point P on the convex side of… ### Tangent to a Hyperbola

Diagram part of a hyperbola with a tangent line that illustrates "A line through a point on the hyperbola… ### Hyperbola Tangent Triangles

All triangles formed by a tangent and the asymptotes of an hyperbola are equal in area. ### Hyperbolic Parabaloid

Three dimensional representation of a variable hyperbola moving parallel to itself along the parabolas… ### Hyperbolic Parabaloid

Two dimensional representation of variable hyperbola moving parallel to itself along the parabolas as… ### Lemniscate

A Lemniscate is, in general, a curve generated by a point moving so that the product of its distances… ### Parabola Foci Properties

The segments between the point of intersection of two tangents to a conic and their points of contact… ### Sliding Contact

These are skew bevel wheels, made of a hyperboloid of revolution around an axis. ### Degenerate Conic Forming Triangle

Illustration showing intersecting straight lines meeting to form a triangle. It is formed by the intersection…