Meanings
plural main diagonals
- linear algebraThe entries of a square matrix from the top left to the bottom right.
In a diagonal matrix, non-zero elements appear only in the main diagonal.
Synonyms: leading diagonal, primary diagonal, major diagonal, good diagonal
Synonyms & antonyms
nounThe entries of a square matrix from the top left to the bottom right.
More synonyms by meaning
nounthe diagonal of a square matrix running from the upper left entry to the lower right entry
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Czech hlavní diagonála
- hlavní diagonálaTranslations
Estonian peadiagonaal
- peadiagonaalTranslations
Finnish päälävistäjä
- päälävistäjäTranslations
French diagonale principale
- diagonale principaleTranslations
Hungarian főátló
- főátlóTranslations
Icelandic aðalhornalína, meginhornalína
- aðalhornalínaTranslations
- meginhornalínaTranslations
Italian diagonale principale
- diagonale principaleTranslations
Japanese 主対角
- 主対角 (shutaikaku)Translations
Polish przekątna główna
- przekątna głównaTranslations
Portuguese diagonal principal
- diagonal principalTranslations
Russian гла́вная диагона́ль
- гла́вная диагона́ль (glávnaja diagonálʹ)Translations
Spanish diagonal principal
- diagonal principalTranslations
Swedish huvuddiagonal
- huvuddiagonalTranslations
Cite this entry
main diagonal. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/main%20diagonal
“main diagonal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/main%20diagonal. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “main diagonal,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/main%20diagonal.
Source: main diagonal on Wiktionary, CC BY-SA 4.0.