Imperative programming - Imperative programming Written by Stan Seibert, Modifed by Wikipedia contributors, published by Wikimedia. In computer science, imperative programming, as opposed to declarative programming, is a programming style that describes computation in terms of a program state and statements that change the program state. In much the same way as the imperative mood in natural languages expresses commands to take action, imperative programs are a sequence of commands for the computer to perform. The hardware implementation of almost all computers is imperative; nearly all computer hardware is designed to execute machine code, which is native to the computer, written in the imperative style. From this low-level perspective, the program state is defined by the contents of memory, and the statements are instructions in the native machine language.
Imperative - Imperative Imperative programming, as opposed to functional programming, is a sort of programming employing side-effect as central execution feature. - see imperative programming The imperative mood is a grammatical mood This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page..
F Sharp programming language - F Sharp programming language F# (pronounced F sharp) is a mixed functional and imperative programming language for the Microsoft .NET initiative. F# was developed by Don Syme at Microsoft Research. It is based on Ocaml which is in turn based on the ML functional programming language. It is a minor project to demonstrate how .NET enables interoperability between different programming paradigms..
Functional programming - Functional programming Functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions. In contrast to imperative programming, functional programming emphasizes the evaluation of functional expressions, rather than execution of commands. The expressions in these languages are formed by using functions to combine basic values. Table of contents showTocToggle("show","hide") 1 Introduction 2 History 3 Comparison with imperative programming 4 Functional programming languages 5 Greater expressiveness: "new forms of glue" 6 Speed and space considerations 7 Resources 7.1 See also: 7.2 For further reading 7.3.
Emacs Lisp programming language - Emacs Lisp programming language Emacs Lisp is a dialect of the Lisp programming language used by the GNU Emacs and XEmacs editors, which will simply be called "Emacs" in this article. Emacs Lisp is sometimes also called Elisp, at the risk of confusion with an unrelated Lisp dialect with the same name. The majority of the editing functionality in Emacs comes from code written in Emacs Lisp; the rest is written in C. Emacs Lisp code can be written by users to customize and extend Emacs. Emacs Lisp is related to the MacLisp and Common Lisp dialects of Lisp. It supports imperative and functional programming methods. Lisp was chosen as the extension language for Emacs because of its powerful features, including the ability to treat functions as data..
Declarative programming - Declarative programming Declarative programming is an approach to computer programming that takes a different approach from traditional imperative programming in Fortran, C++ or Java. Whereas imperative programming gives the computer a list of instructions to execute in a particular order, declarative programming describes to the computer a set of conditions and lets the computer figure out how to satisfy them. Declarative programming includes both functional programming and logic programming. Declarative languages describe relationships between variables in terms of functions or inference rules. The language executor (an interpreter or compiler) applies a fixed algorithm to these relations to produce a result. Examples of declarative programming languages include Miranda, Prolog and SQL. Declarative programming languages are extensively used in solving artificial intelligence and constraint-satisfaction problems. See also: 4GL, constraint.
ABC programming language - ABC programming language ABC is an imperative language and programming environment from CWI, Netherlands. It is interactive, structured, high-level, and easy to learn and use. It is a general-purpose programming language which you might use instead of BASIC, Pascal, or AWK. It is not a systems-programming language but is good for teaching or prototyping. ABC has only five data types that can easily be combined; strong typing, yet without declarations; data limited only by memory; refinements to support top-down programming; nesting by indentation. Programs are typically around a quarter the size of the equivalent Pascal or C program, and more readable. ABC includes a programming environment with syntax-directed editing, suggestions, persistent variables and multiple workspaces and infinite precision arithmetic. An example function words to collect the set.
Ars based programming - Ars based programming ARS based programming is built on three principles; Abstraction, Reference and Synthesis. These principles can be seen as a generalized form of the basic operations of the Lambda Calculus. All essential features of a programming language can be derived from ARS even the three major programming paradigms: functional programming, object-oriented programming and imperative programming. The programming language A++ is a demonstration that based on ARS programming patterns can be developed that are very powerful providing a solid base for solving common programming problems. ARS based programming as covered in the book Programmierung pur (Undiluted Programming or Barebones Programming) published in German under the ISBN 3-87820-108-7 (the English rights are available now!) is facilitated by three tools: A++, ARS++, and ARSAPI. A++, a minimal programming language.
Categorical list of programming languages - Categorical list of programming languages This is a list of programming language grouped by category. See also Alphabetical list of programming languages Chronological list of programming languages Generational list of programming languages Assembly languages directly correspond to a machine language (see below) in order to allow machine code instructions to be written in a form understandable by humans. Assembly languages allow programmers to use symbolic addresses which are later converted to absolute addresses by the assembler. Most assemblers also allow for macros and symbolic constants as well. SSK (Sistema Simvolicheskogo Kodirovaniya, or "System of symbolic coding") for Minsk family of computers. AKI (AvtoKod Ingenera, i.e., "engineer's autocode") for Minsk family of computers was half-step away from assembly languages and doesn't really fit into any other categories in this.
Whitespace (programming language) - Whitespace (programming language) Whitespace is a programming language developed by Edwin Brady and Chris Morris (cim) in 2003. The interpreter ignores any non whitespace characters. Only spaces, tabs and newlines are considered syntax. The language itself is an imperative, stack based language. The virtual machine on which programs run has a stack and a heap. The programmer is free to push arbitrary width integers onto the stack (only integers, currently there is no implementation of floating point or real numbers). The user can also access the heap as a permanent store for variables and data structures. Also see Brainfuck programming language Unlambda programming language Esoteric programming language.
Procedural programming - Procedural programming This article should be merged with imperative programming. Procedural programming is a method (a programming paradigm) of computer programming based upon the concept of the unit and scope (the data viewing range of an executable code statement). A procedural program is composed of one or more units or modules--either user coded or provided in a code library; each module is composed of one or more procedures, also called a function, routine, subroutine, or method, depending on programming language. It is possible for a procedural program to have multiple levels or scopes, with procedures defined inside other procedures. Each scope can contain variables which cannot be seen in outer scopes. Procedural programming offers many benefits over simple sequential programming: Procedural programming code is easier to read.
Programming paradigm - Programming paradigm A programming paradigm is a paradigm for programming computer programs or more generally software or software systems development. It gives the view that the programmer has of the execution of the program: for instance, in the case of object-oriented programming, the programmer sees the execution of the program as a collection of dialoguing objects. A programming paradigm is often closely connected to a certain school of software architecture, software engineering or similar and is often associated with a certain family of programming languages. Many languages are designed to implement a particular paradigm. For instance, Smalltalk and Java are associated with object-oriented programming, while Haskell and Scheme are associated with functional programming. Other languages, such as Common Lisp and Python, are intended to allow the.
Programming style - Programming style Programming style is a term that describes the way a programmer writes code in a certain programming language. Programming style is often dependent on the actual choice of programming language one is writing in. C style will vary from BASIC style, and so on. Table of contents showTocToggle("show","hide") 1 Characteristics of style 1.1 Appropriate variable names 1.2 Indent style 1.3 Looping and control structures 1.4 Spacing Characteristics of style Good style, being a subjective matter, is difficult to concretely categorize, however there are a number of general characteristics. Appropriate variable names Appropriate choices for variable names is seen as the keystone for good style. Code that uses poor names means that the overall functionality of the program is less easy to elucidate. For example,.
ML programming language - ML programming language ML (standing for "Meta-Language") is a general-purpose functional programming language developed by Robin Milner and others in the late 1970s at Edinburgh University. ML is often referred to as an impure functional language, because it permits imperative programming, and therefore, side-effects, unlike other functional programming languages such as Haskell. Features of ML include automatic memory management through garbage collection, a static type-safe, polymorphic type system, type inference, algebraic data types, pattern matching, and a sophisticated module system with functions on modules (functors). Type inference is a technique which allows the compiler to determine from the code the type of each variable and symbol used in the program, without having to explicitely declare them. This allows for a compact, yet easily readable code. Algebraic data.
Lua programming language - Lua programming language The Lua (pronouced LOO-ah or /lua/ in SAMPA) programming language is a lightweight imperative/procedural language, designed as glue language with extensible semantics as a primary goal. Lua was created by the Computer Graphics Technology Group of the Pontifical Catholic University of Rio de Janeiro in Brazil in 1993. It is released as free software, versions before 5.0 were released under BSD-like license terms, which are non-copyleft. From version 5.0 Lua uses the MIT License. Lua has been used in many commercial applications (e.g., in LucasArts' Escape from Monkey Island adventure game and robot control software). Its closest relative in the family of programming languages is perhaps the Icon programming language, although it could also be compared to Python in its emphasis on ease of.
Free-form language - Free-form language In computer programming, a free-form language is a programming language in which the positioning of characters on the page in program text is not significant. Program text does not need to be placed in specific columns as on old punched card systems, and frequently ends of lines are not significant. Whitespace is used to delimit tokens, and does not have other significance. Most free-form languages descend from Algol, including C, Pascal, and Perl. These are also structured programming languages, which is sometimes thought to go along with the free-form syntax: Earlier imperative programming languages such as Fortran used particular columns for line numbers, which structured languages don't use or need. Lisp languages are also free-form, although they do not descend from Algol. One recent language which has abandoned.
A plus plus - plus reference plus synthesis which is used as a name for the minimalistic programming language that is built on ARS. ARS is an abstraction from the Lambda Calculus, taking its three basic operations, and giving them a more general meaning, thus providing a foundation for the three major programming paradigms: functional programming, object-oriented programming and imperative programming. ARS Based Programming is used as a name for programming which consists mainly of applying patterns derived from ARS, to programming in any language. Table of contents showTocToggle("show","hide") 1 History 2 What it can Do 3 Official Website and Information 4 Constitutive Principles of A++ 5 Programming Paradigms Supported by A++ 6 Core Features of A++ 7 Development of Applications with A++ 8 See also 9.
ABC - radio and television network Australian Broadcasting Corporation. The former British television company Associated British Corporation. The Spanish newspaper Diario ABC S.L. ABC is an imperative language and programming environment developed at CWI (Amsterdam, the Netherlands). It served as inspiration for the Python programming language. The Atanasoff Berry Computer, completed in 1942. ABC ALGOL is an extension of Algol 60. ABC 80 was a home computer around 1980. ABC is a musical notation language, used specially in ASCII files because of its simplicity. ABC is a landmark album by The Jackson Five, including future pop star Michael Jackson. ABC is the name of an early 1980s new wave music band fronted by Martin Fry. ABC Records is a recording label. ABC weapons: Atomic, Biological, and Chemical warfare. This abbreviation has largely been.
Algorithm - paychecks or printing students' report cards. Typically, when an algorithm is associated with processing information, data is read from an input source or device, written to an output sink or device, and/or stored for further use. Stored data is regarded as part of the internal state of the entity performing the algorithm. For any such computational process, the algorithm must be rigorously defined: specified in the way it applies in all possible circumstances that could arise. That is, any conditional steps must be systematically dealt with, case-by-case; the criteria for each case must be clear (and computable). Because an algorithm is a precise list of precise steps, the order of computation will almost always be critical to the functioning of the algorithm. Instructions are usually assumed to be listed explicitly, and.
Assignment operation - Assignment operation In most imperative computer programming languages, the assignment operation is one of the basic operations. It sets or re-sets the value assigned to a variable. This means that the same variable name will possibly stand for different values at different times; the variables are not handled in the same way as the unknowns x, y, z ... of algebra, which stand always for the same value. It can take on the form, for example, variable := expression or often an equals sign is used: variable = expression The semantics of this operation is that the current state of the executing program is modified: The expression is evaluated in the current state of the program. The variable is assigned the computed value, replacing the prior value of that.
