diagonalisation

Fetched 2026-10-26 (cache).

Synonyms: diagonalization

Antonyms: diagonalization

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|maths}} In [[matrix algebra]], the process of converting a square [[matrix]] into a diagonal matrix, usually to find the [[eigenvalue]]s of the matrix.
2. {{lb|en|maths}} An argument used in [[proof by contradiction]] by constructing a supposedly exhaustive list of all members of a class, and then subsequently constructing a new member which differs from each existing member in at least one place and therefore cannot belong to the list.

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