Refal is an acronym for REcursive Functions ALgorithmic language. This is usually written in mixed case "Refal", and sometimes in all upper case "REFAL". It is a functional programming language used mainly by mathematicians, for pattern matching, symbol manipulation (symbolic data processing): string processing; computer languages: translation, analysis, metacomputation, etc.; artificial intelligence: theorem proving, natural languages, knowledge bases; computer algebra; scripting and prototyping. It originated in the Soviet Union, created by Valentin F. Turchin. Related websites often have text in English and Russian.
On Refal's creator: photo, contact information, curriculum vitae, research interests, some publications. [Principia Cybernetica Web]
Several downloads. Refal-5: Programming Guide and Reference Manual (by V. Turchin): online, zipfile; Refal-5 compiler executables and documents for varied operating systems. Refal-C translator.
Recursive functions algorithmic language, for symbol manipulation: string processing, translation, artificial intelligence. News, biography, history, documents, training, applications, fora, links. English, Russian. [Open Source, BSD-like]
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