Editing Complement

{{Wiktionary|complement|complementary}}
{{Distinguish|text=[[compliment (disambiguation)|compliment]], an expression of praise}}
'''Complement''' may refer to:
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==The arts ==
* [[Complement (music)]], an interval that, when added to another, spans an octave
** [[Complement (music)#Aggregate complementation|Aggregate complementation]], the separation of pitch-class collections into complementary sets
* [[Complementary color]], in the visual arts

==Biology and medicine==
*[[Complement system]] (immunology), a cascade of proteins in the blood that form part of innate immunity
*[[Complementary DNA]], DNA reverse transcribed from a mature mRNA template
*[[Complementarity (molecular biology)]], a property whereby double stranded nucleic acids pair with each other
*[[Complementation (genetics)]], a test to determine if independent recessive mutant phenotypes are caused by mutations in the same gene or in different genes

== Grammar and linguistics ==
* [[Complement (linguistics)]], a word or phrase having a particular syntactic role
** [[Subject complement]], a word or phrase adding to a clause's subject after a linking verb
**[[Object complement]], a word or phrase adding to the direct object of a verb phrase.
* [[Phonetic complement]]
* [[Opposite (semantics)#Complementary antonyms|Complementary]], a type of opposite in lexical semantics (sometimes called an antonym)

==Mathematics==
===Algebra===
* [[Complement (group theory)]]
* [[Complementary subspaces]]
* [[Orthogonal complement]]
* [[Schur complement]]

===Algorithms===
* [[Complement (complexity)]], relating to decision problems and complexity classes
* [[Complement operator (regular expressions)]]
* [[Method of complements]], in computer science
** Radix complement
** Diminished radix complement
** [[Ones' complement]]
** [[Two's complement]]

===Discrete mathematics===
* [[Complement graph]]
** [[Self-complementary graph]], a graph which is isomorphic to its complement
* [[Complemented lattice]]

===Geometry===
* [[Angular complement|Complement of an angle]], the difference between a right angle (90 degrees) and a given angle
* [[Knot complement]]
* Complement of a point, the dilation of a point in the [[centroid]] of a given triangle, with ratio&nbsp;&minus;1/2

===Logic===
* [[Complement (set theory)]]
* [[Complementary event]] in probability
* [[Logical complement]]
* [[Bitwise complement]]
* Complements in [[Boolean algebra (logic)|boolean algebra]]

==Other uses==
* [[Complementary experiments]], in physics
* [[Complement good]] (economics), a good often consumed together with another good 
* Ship's complement, the number of persons in a [[ship's company]]

==See also==
* [[Complementarity (disambiguation)]]
* [[Compliment (disambiguation)]]
* [[Complimentary (disambiguation)]]

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