Inversion

The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Inversion or inversions may refer to:

Arts

Inversion (artwork), a 2005 temporary sculpture in Houston, Texas
Inversion (music), a term with various meanings in music theory and musical set theory
Inversions (novel) by Iain M. Banks
Inversion (video game), a 2012 third person shooter for Xbox 360, PlayStation 3, and PC
Inversions (EP), the 2014 extended play album by American rock music ensemble The Colourist
Inversions (album), a 2019 album by Belinda O'Hooley
Inversion (film), a 2016 Iranian film

Linguistics and language

Inversion (linguistics), grammatical constructions where two expressions switch their order of appearance
Inversion (prosody), the reversal of the order of a foot's elements in poetry
Anastrophe, a figure of speech also known as an inversion

Mathematics and logic

Additive inverse
Involution (mathematics), a function that is its own inverse (when applied twice, the starting value is obtained)
Inversion (discrete mathematics), any item that is out of order in a sequence
Inverse element
Inverse function, a function that undoes the operation of another function.
Inversive geometry#Circle inversion, a transformation of the Euclidean plane that maps generalized circles to generalized circles
Inversion in a point, or point reflection, a kind of isometric (distance-preserving) transformation in a Euclidean space
Inversion transformation, a conformal transformation (one which preserves angles of intersection)
Method of inversion, the image of a harmonic function in a sphere (or plane); see Method of image charges
Multiplicative inverse, the reciprocal of a number (or any other type of element for which a multiplication function is defined)
Matrix inversion, an operation on a matrix that results in its multiplicative inverse
Model inversion
Set inversion

Natural sciences

Biology and medicine

Inversion (evolutionary biology), a hypothesis about the evolution of the dorsoventral axis in animals
Inversion (kinesiology), movement of the sole towards the median plane
Chromosomal inversion, where a segment of a chromosome is reversed end-to-end
Inversion therapy, the practice of hanging upside down (heart higher than head) for supposed health benefits

Geology

Inversion (geology), the relative uplift of a previously basinal area resulting from local shortening, in structural geology
Quartz inversion, a change in the crystal structure of quartz at high temperatures
Relief inversion, when a previous depression becomes a landform that stands out from its surroundings
Seismic inversion, transforming seismic reflection data into a quantitative rock-property description of a geological formation

Physics and chemistry

Island of inversion, a group of elements with abnormal nuclear shell structure
Nitrogen inversion, a chemical process in which a trigonal nitrogen-containing structure turns inside-out
Population inversion, in statistical mechanics, when a system exists in state with more members in an excited state than in lower-energy states
Pyramidal inversion, a chemical process in which a trigonal structure turns inside-out
Inverted sugar syrup, a chemical reaction converting sucrose into glucose and fructose

Other uses in the natural sciences

Inverse problem, the process of calculating from a set of observations the causal factors that produced them
Inversion (meteorology), air temperature increasing with height

Other uses

Priority inversion, the condition of a low-priority task holding a shared resource that a high-priority task needs
Inversion in postcolonial theory, a discursive strategy/gesture in cultural and subaltern studies
Roller coaster inversion, which turns riders upside-down
Tax inversion, a form of tax avoidance by moving corporate ownership to low-tax nations