Complex

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A complex is a whole that comprehends a number of parts, especially one with interconnected or mutually related parts.

Complex may refer to:

Complex (chemistry), also called a "coordination compound" or "metal complex", a structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules
Complex (psychology), a group of mental factors that are unconsciously associated by the individual with a particular subject and influence the individual's attitude and behavior
Complex (taxonomy), in biology, a cluster of species so closely related that they intergrade, can interbreed, and are difficult to firmly distinguish except at the extremes of their ranges
A group of organisms involved in mimicry, being made of one or more mimics, models or dupes

Complex number, an extension of real numbers obtained by adjoining imaginary numbers
Complex system, a system of interconnected simple parts that together exhibit a high degree of computational complexity from which emerges a higher order behavior
Complex analysis, the study of functions of complex numbers.
An element of a complex algebra or field of sets
Chain complex, a (possibly long) sequence of maps
Simplicial complex, a kind of topological space that can be divided into fully adjacent triangles, or more generally, into simplices
CW complex, or closure-finite weak complex, a kind of topological space, a generalization of the simplicial complex

Complex (magazine), an American men's lifestyle magazine
Complex (band), a Japanese rock duo
Complex (song), a 1979 song by Gary Numan from his album The Pleasure Principle

See also