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Agree, the: The Theory Of The Functionalist Paradigm

In computer sciencefunctional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative programming paradigm in which function definitions are trees of expressions that map values to other values, rather than a sequence of imperative statements which update the running state of the program.

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In functional programming, functions https://amazonia.fiocruz.br/scdp/essay/perception-checking-examples/reflection-about-moving-to-university.php treated as first-class citizensmeaning that they The Theory Of The Functionalist Paradigm be bound to names including local identifierspassed as argumentsand returned Functjonalist other functions, just as any other data type can. This allows programs to be written in a declarative and composable style, where small functions are combined in a modular manner.

Functional programming is sometimes treated as synonymous with purely functional programminga subset of functional programming which treats all functions as deterministic mathematical functionsor pure functions.

When a pure function is called with some given arguments, it will always return the same result, and cannot be affected by any mutable state or other side effects.

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This is in contrast with impure procedurescommon in imperative Patadigmwhich can have side effects such as modifying the program's state or taking input from a user. Proponents of purely functional programming claim that by restricting side effects, programs can have fewer bugsbe easier to debug and testand be more suited to formal verification.

Functional programming has its roots in academiaevolving from the lambda calculusa formal system The Theory Of The Functionalist Paradigm computation based only on functions. Functional programming has historically been less popular than imperative programming, but many functional languages are seeing use today in industry and education, including Common LispScheme[3] [4] [5] [6] ClojureWolfram Language[7] [8] Racket[9] Erlang[10] [11] [12] OCaml[13] [14] Haskell[15] [16] and F. The lambda calculusdeveloped in the s by Alonzo Churchis a formal system of computation built from function application.

In Alan Turing proved that the lambda calculus and Turing machines are equivalent models of computation, [33] showing that the lambda calculus is Turing complete. Lambda calculus forms the basis of all functional programming languages.

Church later developed a weaker system, the simply-typed lambda calculuswhich extended the lambda calculus by assigning a Parradigm to all terms. Later dialects, such as Scheme and Clojureand offshoots such as Dylan and Juliasought to simplify and rationalise Lisp around a cleanly functional core, while Common Lisp was designed to preserve and update the paradigmatic features of the numerous older dialects it replaced.

Sociological Theories

Information Processing Language IPL, is sometimes cited as the first computer-based functional programming language. It does have a notion of generatorwhich amounts to a function that accepts a function as an argument, and, since it is an assembly-level language, code can Thhe data, so IPL can be regarded as having higher-order functions.

However, it relies heavily on the mutating list structure and similar imperative features. Kenneth E. In the early s, Iverson and Roger Hui created J. In the mids, Arthur Whitneywho had previously worked with Iverson, created Kwhich is used commercially in financial industries along with its descendant Q. A Functional Style and its Algebra of Programs". In the s, Guy L. Scheme was the first dialect of lisp to use lexical scoping and to require tail-call optimizationfeatures that encourage functional programming.

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This led to new approaches to interactive theorem proving and has influenced the development of subsequent functional programming languages. The lazy functional language, Mirandadeveloped by David Turner, initially appeared in and had a strong influence on Haskell. With Miranda being proprietary, Haskell began with a consensus in to form an open standard for functional programming research; implementation releases have been ongoing since More recently it has found use in Paraxigm such as parametric CAD courtesy of the OpenSCAD language built on the CSG geometry framework, although its restriction on reassigning values all values are treated as constants has led to confusion among users who are unfamiliar with functional programming as a concept.

Functional programming continues to be used in commercial settings. A number of concepts and paradigms are specific to functional programming, and generally foreign to imperative programming including object-oriented programming.]