Basic special functionsIndicator function: maps x to either 1 or 0, depending on whether or not x belongs to some subset.Step function: A finite linear combination of indicator functions of half-open ...
Elementary functions are functions built from basic operations (e.g. addition, exponentials, logarithms...)Algebraic functionsAlgebraic functions are functions that can be expressed as the solution of ...
In mathematics, many functions or groups of functions are important enough to deserve their own names. This is a listing of articles which explain some of these functions in more detail. There is a la ...