Meanings
noundiagonalisation (countable and uncountable, plural diagonalisations)
plural diagonalisations · alternative diagonalization
- countableuncountablemathematicsIn matrix algebra, the process of converting a square matrix into a diagonal matrix, usually to find the eigenvalues of the matrix.
- countableuncountablemathematicsAn 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.
Synonyms & antonyms
nounchanging a square matrix to diagonal form (with all non-zero elements on the principal diagonal)
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Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Cite this entry
APA
diagonalisation. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/diagonalisation
MLA
“diagonalisation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/diagonalisation. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “diagonalisation,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/diagonalisation.
Source: diagonalisation on Wiktionary, CC BY-SA 4.0.