 Congruence

Congruence is the state achieved by coming together, the state of agreement. The Latin congruō meaning “I meet together, I agree”. As an abstract term, congruence means similarity between objects. Congruence, as opposed to equivalence or approximation, is a relation which implies a kind of equivalence, though not complete equivalence.
Contents
Mathematics
 Congruence (geometry), being isometric — roughly, the same size and shape
 In modular arithmetic, having the same remainder when divided by a specified integer
 Congruence or congruence relation, in abstract algebra, an equivalence relation on an algebraic structure that is compatible with the structure

 Congruence subgroup, a subgroup defined by congruence conditions on the entries of a matrix group with integer entries
 Ramanujan's congruences, congruences for the partition function, p(n), first discovered by Ramanujan in 1919
 Congruence of squares, in number theory, a congruence commonly used in integer factorization algorithms
 Congruence (manifolds), in the theory of smooth manifolds, the set of integral curves defined by a nonvanishing vector field defined on the manifold

 Congruence (general relativity), in general relativity, a congruence in a fourdimensional Lorentzian manifold that is interpreted physically as a model of space time, or a bundle of world lines
 Zeller's congruence, an algorithm to calculate the day of the week for any date
Psychology
 In Carl Rogers personality theory, the compliance between ideal self and actual self. See Incongruence.
 In psychology and NLP (Neurolinguistic programming), congruence could be defined as rapport within oneself, or internal and external consistency, perceived by others as sincerity or certainty.
 Mood congruence,
 in psychiatry, congruence between feeling or emotion, and affect display or the manner in which that emotion is being expressed
 in psychology, consistency between a patient's symptoms and their mood or mental disorder
Other
 Congruence bias, a type of cognitive bias, similar to confirmation bias
 An alternative definition of congruence in the work of Virginia Satir, one of the sources of NLP, is the balance between self, other and context.
 In cladistics, congruence is a test of homology, or shared, derived character states, in which the distributions of supposed homologies among taxa are compared for consistency.
 Horizontal and vertical congruence, two related principles of grouping
 In HTML, the graphical symbol for congruence ≅ is written as
⑃
(hexadecimal),≅
(decimal) and≅
(named entity).
See also
 Congruence principle (disambiguation)
 ≡ (disambiguation)
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congruence — [ kɔ̃gryɑ̃s ] n. f. • 1771; « convenance » XVe; de congru 1 ♦ Math. Égalité de figures géométriques (dites congruentes). ⇒ énantiomorphe. Congruence de droites : famille de droites à deux paramètres. Congruence sur un ensemble E muni d une loi de … Encyclopédie Universelle
Congruence — Con gru*ence, n. [L. congruentia: cf. OF. cornguence.] Suitableness of one thing to another; agreement; consistency. Holland. [1913 Webster] … The Collaborative International Dictionary of English
congruence — I noun accord, accordance, acquiescence, adjustment, affinity, agreement, coherence, coincidence, common feature, compatibility, compliance, concert, concordance, conformance, conformity, congeniality, congruity, consensus, consistency,… … Law dictionary
congruence — mid 15c., from L. congruentia agreement, harmony, congruity, from congruentem (nom. congruens), prp. of congruere to come together (see CONGRUENT (Cf. congruent)). Related: Congruency … Etymology dictionary
congruence — [käŋ′gro͞o əns, kän′gro͞o əns; kən gro͞o′əns] n. [ME < L congruentia: see CONGRUENT] 1. the state or quality of being in agreement; correspondence; harmony 2. Geom. the property of a plane or solid figure whereby it coincides with another… … English World dictionary
Congruence — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Derrière le terme de congruence se cachent des notions semblables mais de niveaux d abstraction différents. Historiquement, la notion de congruence sur… … Wikipédia en Français
congruence — n. (formal or technical) congruence with * * * [ kɒŋgrʊəns] (formal or technical) congruence with … Combinatory dictionary
congruence — [[t]kɒ̱ŋgruəns[/t]] N UNCOUNT: also a N, usu N between pl n Congruence is when two things are similar or fit together well. [FORMAL] ...a necessary congruence between political, cultural and economic forces … English dictionary
congruence — kongruencija statusas T sritis fizika atitikmenys: angl. congruence vok. Kongruenz, f rus. конгруэнция, f pranc. congruence, f … Fizikos terminų žodynas
congruence — palyginimas statusas T sritis automatika atitikmenys: angl. comparison; congruence; equality matching; matching vok. Gegenüberstellung, f; Kongruenz, f; Vergleich, m rus. сопоставление, n; сравнение, n pranc. comparaison, f … Automatikos terminų žodynas