What is Commutative diagram?
Given a number of [[Function (mathematics)|functions]], a '''commutative diagram''' shows that in many cases, applying different functions, perhaps in a different order gives the same result; [[File:Morphism.svg|none|thumb|Applying a function to A yields B. A simple diagram]] Functions can be chained, Mathematician talk about [[Function composition|composing]] them: [[File:Morphism-Composition.svg|none|thumb|First applying f, then applying g yields C, from A.]] That way, it is possible to create a new function, which first applies f, then g, and call it h [[File:Morphism-Composition-with-name.svg|none|thumb]] But h can of course be any other path as well. A diagram is called commutative diagram, if it doesn't matter what path is chosen to get from A to C. [[Category:Mathematics]]