Inverse
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Inverse or Inversion may refer to:
- Inversion (music)
- Priority inversion, in which a low-priority task holds a shared resource that a high-priority task needs
- Inversion (prosody), the reversal of the order of a foot's elements
- Mirror image
- Inverted pyramid, a way to arrange information in a news story
- Inverted sugar syrup
- Roller coaster inversions, which turn riders upside-down
In mathematics:
- Inverse element of an element x with respect to a binary operation * with identity element e is an element y such that x * y = y * x = e. In particular,
- the additive inverse of x is –x;
- the multiplicative inverse of x is x–1.
- Inverse function — inverse element with respect to function composition: a function that "reverses" the action of a given function: f–1(f(x)) = x.
- Inversion in a point — a geometric transform.
- Circle inversion — another particular geometric transformation of a plane that maps the outside of a circle to the inside and vice-versa.
- Inverse limit — a notion in abstract algebra.
- Inverse (logic) — ~p → ~q is the inverse of p → q.
- Inverse matrix — inverse element with respect to matrix multiplication.
- Pseudoinverse, a generalization of the inverse matrix.
- Inverse proportion, also inversely proportional — a relationship between two variables x and y characterized by the equation y = k / x.
- Inverse problem — the task of identifying model parameters from observed data; see for example
- Inverse perspective — the further the objects, the larger they are drawn.
- Inverse-square law — the magnitude of a force is proportional to the inverse square of the distance.
- Inverse transform sampling method — generate some random numbers according to a given probability distribution.
- Inverse chain rule method — related to integration and differentiation.
- Inversion of elements, a pair of adjacent out-of-order elements of a permutation (viewed as a list).
In technology:
- Inverter (electrical), which converts direct current to alternating current
- Inverter (logic gate) (or 'NOT gate')
- Inverse multiplexer (or 'demultiplexer'), which breaks a single data stream into several streams with lower data rates
In science:
- inversion (meteorology), air temperature increasing with height
- Nitrogen inversion, in chemistry
- Population inversion, in statistical mechanics, when a system exists in state with more members in an excited state than in lower energy states
- Chromosomal inversion, where a segment of a chromosome is reversed end to end
- Inverse problem, in science and mathematics, fitting a model to known data
- Sexual inversion, in biology, the switching from one sex to the opposite among some animal species.
- Inversion (geology), in structural geology, this relates to the relative uplift of a previously basinal area resulting from at least local shortening
In literature:
- an anastrophe
In cultural studies:
- inversion in postcolonial theory and subaltern studies, a discursive strategy/gesture
Other meanings:
- Program Inverse for solving Inverse and Optimization problems.
- A British band: Inversion (band)
[edit] See also
- Antonym, word pairs that are opposite in meaning
- Introversion and extroversion
- Inverse-square law, something is inversely proportional to the square of the distance
- Inverted river delta, the narrow end on the seafront, the wide end located further inland
- Obverse and reverse, in coins
- Opposite
- Reverse
- Reverse perspective in art: the further the object, the larger it is drawn
- Terminology of homosexuality#Other late 19th and early 20th century sexological terms.
- Voice inversion a method of scrambling communications
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