Parabolic usually refers to something in a shape of a
parabola, but may also refer to a
parable
A parable is a succinct, didactic story, in prose or verse, that illustrates one or more instructive lessons or principles. It differs from a fable in that fables employ animals, plants, inanimate objects, or forces of nature as characters, w ...
.
Parabolic may refer to:
*In mathematics:
**In elementary mathematics, especially elementary geometry:
**
Parabolic coordinates
Parabolic coordinates are a two-dimensional orthogonal coordinate system in which the coordinate lines are confocal parabolas. A three-dimensional version of parabolic coordinates is obtained by rotating the two-dimensional system about the symme ...
**
Parabolic cylindrical coordinates
**
parabolic Möbius transformation
**
Parabolic geometry (disambiguation)
**
Parabolic spiral
**
Parabolic line
**In advanced mathematics:
***
Parabolic cylinder function
In mathematics, the parabolic cylinder functions are special functions defined as solutions to the differential equation
This equation is found when the technique of separation of variables is used on Laplace's equation when expressed in parabo ...
***
Parabolic induction In mathematics, parabolic induction is a method of constructing representations of a reductive group from representations of its parabolic subgroups.
If ''G'' is a reductive algebraic group and P=MAN is the Langlands decomposition of a parabol ...
***
Parabolic Lie algebra In algebra, a parabolic Lie algebra \mathfrak p is a subalgebra of a semisimple Lie algebra \mathfrak g satisfying one of the following two conditions:
* \mathfrak p contains a maximal solvable subalgebra (a Borel subalgebra) of \mathfrak g;
* the ...
***
Parabolic partial differential equation
A parabolic partial differential equation is a type of partial differential equation (PDE). Parabolic PDEs are used to describe a wide variety of time-dependent phenomena, including heat conduction, particle diffusion, and pricing of derivati ...
*In physics:
**
Parabolic trajectory
In astrodynamics or celestial mechanics a parabolic trajectory is a Kepler orbit with the eccentricity equal to 1 and is an unbound orbit that is exactly on the border between elliptical and hyperbolic. When moving away from the source it is ca ...
*In technology:
**
Parabolic antenna
A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. The most common form is shaped like a dish and is popularly called a dish antenna or pa ...
**
Parabolic microphone
A parabolic microphone is a microphone that uses a parabolic reflector to collect and focus sound waves onto a transducer, in much the same way that a parabolic antenna (e.g. satellite dish) does with radio waves. Though they lack high fidelity ...
**
Parabolic reflector
**
Parabolic trough - a type of solar thermal energy collector
**
Parabolic flight
A reduced-gravity aircraft is a type of fixed-wing aircraft that provides brief near-weightless environments for training astronauts, conducting research and making gravity-free movie shots.
Versions of such airplanes were operated by the NAS ...
- a way of achieving weightlessness
**
Parabolic action, or parabolic bending curve - a term often used to refer to a progressive bending curve in
fishing rod
A fishing rod is a long, thin rod used by angling, anglers to fishing, catch fish by manipulating a fishing line, line ending in a fish hook, hook (formerly known as an ''angle'', hence the term "angling"). At its most basic form, a fishing ...
s.
*In commodities and stock markets:
**
Parabolic SAR In stock and securities market technical analysis, parabolic SAR (parabolic stop and reverse) is a method devised by J. Welles Wilder, Jr., to find potential reversals in the market price direction of traded goods such as securities or currency exc ...
- a chart pattern in which prices rise or fall with an increasingly steeper slope
*Other
**
Parabolic dune, a sand formation
{{disambiguation