discriminant
Fetched 2026-10-26 (cache).
Synonyms: discriminate, indiscriminant, discriminal, discriminants
Antonyms: discriminate, indiscriminant, discriminal, discriminants
Related words from Datamuse; suggestions, not definitions.
Noun
- {{lb|en|algebra}} An [[expression]] that gives information about the [[root]]s of a [[polynomial]]; for example, the [[expression]] ''D = b<sup>2</sup> - 4ac'' determines whether the [[root]]s of the [[quadratic equation]] ''ax<sup>2</sup> + bx + c = 0'' are [[real]] and [[distinct]] (''D'' > 0), real and [[equal]] (''D'' = 0) or [[complex]] (''D'' < 0).
- {{lb|en|geometry}} The [[invariant]] (on the vector space of forms of degree ''d'' in ''n'' [[variable]]s) that vanishes exactly when the corresponding [[hypersurface]] in P<sup>''n''-1</sup> is singular.
Adjective
- Serving to [[discriminate]].
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.