# Pidgin code

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In computer programming, **pidgin code** is a mixture of several programming languages in the same program, or pseudocode that is a mixture of a programming language with natural language descriptions. Hence the name: the mixture is a programming language analogy to a pidgin in natural languages.

In numerical computation, mathematical style pseudocode is sometimes called **pidgin code**, for example *pidgin ALGOL* (the origin of the concept), *pidgin Fortran*, *pidgin BASIC*, *pidgin Pascal*, and *pidgin C*. It is a compact and often informal notation that blends syntax taken from a conventional programming language with mathematical notation, typically using set theory and matrix operations, and perhaps also natural language descriptions.

It can be understood by a wide range of mathematically trained people, and is used as a way to describe algorithms where the control structure is made explicit at a rather high level of detail, while some data structures are still left at an abstract level, independent of any specific programming language.

Normally non-ASCII typesetting is used for the mathematical equations, for example by means of TeX or MathML markup, or proprietary Formula editor formats.

These are examples of articles that contain mathematical style pseudo code:

## See also

- Pseudocode
- Wikipedia:Algorithms on Wikipedia - Wikipedia guidelines for mathematical style pseudo code.

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