plural of temperature inversion

plural of Walden inversion

Either concept, the inverse of the other, of a conceptual pair.

(linear algebra) Of a matrix A, another matrix B such that A multiplied by B and B multiplied by A both equal the identity matrix.

(chemistry) The rapid inversion of the lone pair in a molecule such as a tertiary amine which prevents it from being chiral.

(mathematics) Proportional to the reciprocal of the independent variable.

(mathematics) For a given function f, another function, denoted f⁻¹, that reverses the mapping action of f; (formally) given a function f:X→Y, a function g:Y→X such that, ∀x∈X,f(x)=y⟹g(y)=x.

(mathematics) a pair of integers (i,j) is an inversion pair of some permutation 𝜎 if i𝜎(j).

(music) A technique where the composer will take the inversion of the tone row, and write that backwards, thus creating a retrograded inversion of the original note row.

(mathematics) The inverse with respect to addition; the opposite.