Complement Explained

Complement may refer to:

The arts

Complement (music), an interval that, when added to another, spans an octave
- 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
Phonetic complement
Complementary, a type of opposite in lexical semantics (sometimes called an antonym)

Mathematics

Algebra

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

Complementary angles
Knot complement
Complement of a point, the dilation of a point in the centroid of a given triangle, with ratio -1/2

Logic

Complement (set theory)
Complementary event in probability
Logical complement
Bitwise complement
Complements in 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