congruence

From Middle English congruence, from Latin congruentia (“agreement”), from congruēns, present active participle of congruō (“meet together, agree”).

• IPA^(key): /ˈkɑŋ.ɡɹu.əns/, /kenˈɡɹuː.əns/

• Audio (southern England)

  (file)

congruence (plural congruences)

1. The quality of agreeing or corresponding; being suitable and appropriate.
2. (mathematics, number theory) A relation between two numbers indicating they give the same remainder when divided by some given number.
3. (mathematics, geometry) The quality of being isometric — roughly, the same measure and shape.
4. (mathematics, linear algebra) Matrix similarity by an orthogonal matrix.
5. (algebra) More generally: any equivalence relation defined on an algebraic structure which is preserved by operations defined by the structure.

• congruency, congruity

• congruent

• residue

From Latin congruentia (“agreement”), from congruēns, present active participle of congruō (“meet together, agree”).

• IPA^(key): /kɔ̃.ɡʁy.ɑ̃s/
• Homophone: congruences

• Audio

  (file)

congruence f (plural congruences)

1. (mathematics) congruence

• congru

• “congruence”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.