meaning of beta

1. BETA Kristensen, Madsen aau. dk>, Moller-Pedersen & Nygaard, 1983. Object-oriented language with block structure, coroutines, concurrency, strong typing, part objects, separate objects and classless objects. Central feature is a single abstraction mechanism called "patterns", a generalisation of classes, providing instantiation and hierarchical inheritance for all objects including procedures and processes. Mjolner Informatics ApS, Aarhus, implementations for Mac, Sun, HP, Apollo. E-mail: dk>. Mailing list: dk>. ["Object-Oriented Programming in the BETA Programming Language", Ole Lehrmann et al, A-W June 1993, ISBN 0-201-62430-3]. [Jargon File]
2. beta /bayt*/, /bet*/ or Commonwealth /beet*/ See beta conversion, beta test. [Jargon File] beta abstraction [lambda-calculus] The conversion of an expression to an application of a lambda abstraction to an argument expression. Some subterm of the original expression becomes the argument of the abstraction and the rest becomes its body. E. g. 4+1 --> x . x+1 4 The opposite of beta abstraction is beta reduction. These are the two kinds of beta conversion. beta conversion A term from lambda-calculus for beta reduction or beta abstraction.
3. the 2nd letter of the Greek alphabet

Related Words

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