# function

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**Function (biology)**— A function is part of an answer to a question about why some object or process occurred in a system that evolved through a process of selection. Thus, function refers forward from the object or process, along some chain of causation to the goal… …102

**function, logical**— In logic and mathematics a function, also known as a map or mapping, is a relation that associates members of one class X with some unique member y of another class Y. The association is written as y = f(x ). The class X is called the domain of… …103

**Function space**— In mathematics, a function space is a set of functions of a given kind from a set X to a set Y . It is called a space because in many applications, it is a topological space or a vector space or both. ExamplesFunction spaces appear in various… …104

**Function generator**— [ http://www.agilent.com/u2761a U2761A] USB Modular Function Generator from Agilent Technologies] A function generator is a piece of electronic test equipment or software used to generate electrical waveforms. These waveforms can be either… …105

**Function approximation**— The need for function approximations arises in many branches of applied mathematics, and computer science in particular. In general, a function approximation problem asks us to select a function among a well defined class that closely matches (… …106

**Function representation**— In computer graphics the function representation (FRep [Shape Modeling and Computer Graphics with Real Functions, [http://www.hyperfun.org/F rep.html FRep Home Page] ] or F Rep) is used in solid modeling. FRep was introduced in Function… …107

**Function Point Analyse**— Die Artikel Function Point Verfahren und Function Point Analyse überschneiden sich thematisch. Hilf mit, die Artikel besser voneinander abzugrenzen oder zu vereinigen. Beteilige dich dazu an der Diskussion über diese Überschneidungen. Bitte… …108

**Function problem**— In computational complexity theory, a function problem is a problem other than a decision problem, that is, a problem requiring a more complex answer than just YES or NO.Notable examples include the travelling salesman problem, which asks for the …109

**Function of a real variable**— In mathematics, a function of a real variable is a mathematical function whose domain is the real line. More loosely, a function of a real variable is sometimes taken to mean any function whose domain is a subset of the real line.Functions of a… …110

**Function model**— A function model or functional model is a structured representation of the functions, activities or processes within the modeled system or subject area. [http://www.itl.nist.gov/fipspubs/idef02.doc FIPS Publication 183] released of IDEFØ December …