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Title: Complex  
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Subject: “GIGS”JUST A HERO TOUR 1986, Why MEDRS?, Representation up to homotopy, The China World Trade Center, John Skoyles (scientist)
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Complex may refer to:


  • Biology 1
  • Chemistry 2
  • Mathematics 3
  • Other scientific uses 4
  • As a name 5
  • See also 6



  • Coordination complex, also called a "coordination compound" or "metal complex", a structure consisting of a central atom or molecule weakly connected to surrounding atoms or molecules (ligands)
  • Chelate complex, a coordination complex with more than one bond


  • 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
  • Line complex, a 3-dimensional family of lines in space

Other scientific uses

  • 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
  • Synonym for a complex system which generally includes all interactions between elements
  • Complex crater, a type of large impact crater morphology

As a name

See also

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