# Conic sections

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 that branch of geometry which treats of the parabola, ellipse, and hyperbola. (Geom.) See under Conic.

References in periodicals archive ?
According to Google, Khayyam's "Treatise on Demonstration of Problems of Algebra (1070) remains an essential text, introducing the concept of binomial expansion & using conic sections to solve cubic & quadratic equations."
As a mathematician, Al Khayam authored "Treatise on Demonstration of Problems of Algebra" where "he gave a systematic discussion of the solution of cubic equations by means of intersecting conic sections," according to Britannica.
Another topic of classical geometry that Lockhart investigates is that of conic sections (first studied by Apollonius), something that has fallen somewhat out of favor in today's streamlined mathematics curriculum.
The topics include isometries in Euclidean vector spaces and their classification in Rn; the conic sections in the Euclidean plane; linear fractional transformations and planar hyperbolic geometry; finite probability theory and Bayesian analysis; and Boolean lattices, Boolean algebras, and Stone's theorem.
For collimated beam,  presents an alternative GO shaping technique based on the representation of the reflector generatrices by concatenated local conic sections. There, the authors employ rectangular coordinates to describe the local conic sections representing the reflectors' generatrices, leading to a set of nonlinear algebraic equations.
Since [[GAMMA].sub.[mu],[rho]] is a quadratic function, its level curves are plane conic sections. The properties of these conic sections are well known.
Kanas, "Techniques of the differential subordination for domains bounded by conic sections," International Journal of Mathematics and Mathematical Sciences, vol.
The cutout voids are very complex conic sections, and we never would have been able to model, let alone build, these shapes without the aid of digital design and fabrication technology.
The process can produce vertical, horizontal and angled walls, mixed-material conic sections, enclosed sections, crossovers and intersections.
The topics include before calculus, limits and continuity, the derivative in graphing and applications, principles of integral evaluation, mathematical modeling with differential equations, infinite series, and parametric and polar curves from conic sections. Answers to odd-numbered exercises are in the end matter.
Boytchev in Chapter 20 presents how the concept of conic sections can be taught by using virtual models.
Slice them any way you like, and you have a real-world example of conic sections 6 which can take the form of an ellipse, parabola, or hyperbola.

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