1. A ref="module.php?name=Lexikon&file=search&eid=1&query=DSP">DSP language. ["OPAL: A High Level Language and Environment for DSP boards on PC", J.P. Schwartz et al, Proc ICASSP-89, 1989]. 2. The language of the ref="module.php?name=Lexikon&file=search&eid=1&query=object-oriented database">object-oriented database ref="module.php?name=Lexikon&file=search&eid=1&query=GemStone">GemStone. ["Making Smalltalk a Database System", G. Copeland et al, Proc SIGMOD' 84, ACM 1984, pp.316- 325]. 3. A ref="module.php?name=Lexikon&file=search&eid=1&query=simulation">simulation language with provision for {stochastic variable}s. An extension of {Autostat}. ["C-E-I-R OPAL", D. Pilling, Internal Report, C.E.I.R. Ltd. (1963)]. 4. A language for compiler testing said to be used internally by ref="module.php?name=Lexikon&file=search&eid=1&query=DEC">DEC. 5. A ref="module.php?name=Lexikon&file=search&eid=1&query=functional programming">functional programming language designed at the ref="module.php?name=Lexikon&file=search&eid=1&query=Technische Universitaet Berlin">Technische Universitaet Berlin as a testbed for the development of ref="module.php?name=Lexikon&file=search&eid=1&query=functional program">functional programs. OPAL integrates concepts from Algebraic Specification and Functional Programming, which favour the (formal) development of (large) production-quality software written in a ref="module.php?name=Lexikon&file=search&eid=1&query=purely functional">purely functional style. The core of OPAL is a ref="module.php?name=Lexikon&file=search&eid=1&query=strongly typed">strongly typed, ref="module.php?name=Lexikon&file=search&eid=1&query=higher-order">higher-order, ref="module.php?name=Lexikon&file=search&eid=1&query=strict">strict applicative language which belongs to the tradition of ref="module.php?name=Lexikon&file=search&eid=1&query=Hope">Hope and ref="module.php?name=Lexikon&file=search&eid=1&query=ML">ML. The algebraic flavour of OPAL is visible in the syntactical appearance and in the preference of ref="module.php?name=Lexikon&file=search&eid=1&query=parameterisation">parameterisation to ref="module.php?name=Lexikon&file=search&eid=1&query=polymorphism">polymorphism. OPAL supports: ref="module.php?name=Lexikon&file=search&eid=1&query=information hiding">information hiding - each language unit is divided into an interface (signature) and an implementation part selective import ref="module.php?name=Lexikon&file=search&eid=1&query=parameterised module">parameterised modules free constructor ref="module.php?name=Lexikon&file=search&eid=1&query=views">views on ref="module.php?name=Lexikon&file=search&eid=1&query=sorts">sorts, which allow pattern-based function definitions despite quite different implementations full ref="module.php?name=Lexikon&file=search&eid=1&query=overloading">overloading of names puristic scheme language with no ref="module.php?name=Lexikon&file=search&eid=1&query=built-in">built-in data types (except ref="module.php?name=Lexikon&file=search&eid=1&query=Boolean">Booleans and denotations). OPAL and its predecessor OPAL-0 have been used for some time at the Technische Universitaet Berlin in CS courses and for research into optimising compilers for applicative languages. The OPAL compiler itself is writte entirely in OPAL. An overview is given in "OPAL: Design And Implementation of an Algebraic Programming Language". ref="http://www.cs.tu-berlin.de/~opal/">Start . ref="ftp://ftp.cs.tu-berlin.de/pub/local/uebb/papers/DesignImplOpal.ps.gz">. (1995-02-16)

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[ ref="module.php?name=Lexikon&op=content&tid=31">2 ] [ ref="module.php?name=Lexikon&op=content&tid=134">= ] [ ref="module.php?name=Lexikon&op=content&tid=220">ACM ] [ ref="module.php?name=Lexikon&op=content&tid=262">ad ] [ ref="module.php?name=Lexikon&op=content&tid=374">ae ] [ ref="module.php?name=Lexikon&op=content&tid=396">ag ] [ ref="module.php?name=Lexikon&op=content&tid=411">ai ] [ ref="module.php?name=Lexikon&op=content&tid=432">AL ] [ ref="module.php?name=Lexikon&op=content&tid=433">al ] [ ref="module.php?name=Lexikon&op=content&tid=464">algebra ] [ ref="module.php?name=Lexikon&op=content&tid=466">algebraic ] [ ref="module.php?name=Lexikon&op=content&tid=544">am ] [ ref="module.php?name=Lexikon&op=content&tid=592">an ] [ ref="module.php?name=Lexikon&op=content&tid=683">app ] [ ref="module.php?name=Lexikon&op=content&tid=727">applicative language ] [ ref="module.php?name=Lexikon&op=content&tid=740">ar ] [ ref="module.php?name=Lexikon&op=content&tid=743">arc ] [ 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] [ ref="module.php?name=Lexikon&op=content&tid=3929">ee ] [ ref="module.php?name=Lexikon&op=content&tid=3946">eg ] [ ref="module.php?name=Lexikon&op=content&tid=4148">er ] [ ref="module.php?name=Lexikon&op=content&tid=4171">es ] [ ref="module.php?name=Lexikon&op=content&tid=4199">et ] [ ref="module.php?name=Lexikon&op=content&tid=4354">extension ] [ ref="module.php?name=Lexikon&op=content&tid=4497">fi ] [ ref="module.php?name=Lexikon&op=content&tid=4520">file ] [ ref="module.php?name=Lexikon&op=content&tid=4640">flavour ] [ ref="module.php?name=Lexikon&op=content&tid=4700">fo ] [ ref="module.php?name=Lexikon&op=content&tid=4727">for ] [ ref="module.php?name=Lexikon&op=content&tid=4828">fr ] [ ref="module.php?name=Lexikon&op=content&tid=4859">free ] [ ref="module.php?name=Lexikon&op=content&tid=4939">Fun ] [ ref="module.php?name=Lexikon&op=content&tid=4940">function ] [ ref="module.php?name=Lexikon&op=content&tid=4941">functional ] [ 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] [ ref="module.php?name=Lexikon&op=content&tid=5903">IC ] [ ref="module.php?name=Lexikon&op=content&tid=5931">id ] [ ref="module.php?name=Lexikon&op=content&tid=5956">ie ] [ ref="module.php?name=Lexikon&op=content&tid=5986">iff ] [ ref="module.php?name=Lexikon&op=content&tid=6013">il ] [ ref="module.php?name=Lexikon&op=content&tid=6053">import ] [ ref="module.php?name=Lexikon&op=content&tid=6064">in ] [ ref="module.php?name=Lexikon&op=content&tid=6194">int ] [ ref="module.php?name=Lexikon&op=content&tid=6274">interface ] [ ref="module.php?name=Lexikon&op=content&tid=6413">io ] [ ref="module.php?name=Lexikon&op=content&tid=6449">ir ] [ ref="module.php?name=Lexikon&op=content&tid=6468">iron ] [ ref="module.php?name=Lexikon&op=content&tid=6482">is ] [ ref="module.php?name=Lexikon&op=content&tid=6558">it ] [ ref="module.php?name=Lexikon&op=content&tid=6589">J ] [ ref="module.php?name=Lexikon&op=content&tid=6822">ki ] [ ref="module.php?name=Lexikon&op=content&tid=6918">la ] [ ref="module.php?name=Lexikon&op=content&tid=6950">language ] [ ref="module.php?name=Lexikon&op=content&tid=7091">Lex ] [ ref="module.php?name=Lexikon&op=content&tid=7107">li ] [ ref="module.php?name=Lexikon&op=content&tid=7243">lk ] [ ref="module.php?name=Lexikon&op=content&tid=7260">load ] [ ref="module.php?name=Lexikon&op=content&tid=7410">lt ] [ ref="module.php?name=Lexikon&op=content&tid=7441">ly ] [ ref="module.php?name=Lexikon&op=content&tid=7457">M ] [ ref="module.php?name=Lexikon&op=content&tid=7463">ma ] [ ref="module.php?name=Lexikon&op=content&tid=7579">mall ] [ ref="module.php?name=Lexikon&op=content&tid=7816">meter ] [ ref="module.php?name=Lexikon&op=content&tid=8007">ML ] [ ref="module.php?name=Lexikon&op=content&tid=8019">mm ] [ ref="module.php?name=Lexikon&op=content&tid=8032">mo ] [ ref="module.php?name=Lexikon&op=content&tid=8040">mod ] [ ref="module.php?name=Lexikon&op=content&tid=8079">module ] [ ref="module.php?name=Lexikon&op=content&tid=8167">mp ] [ ref="module.php?name=Lexikon&op=content&tid=8258">mu ] [ ref="module.php?name=Lexikon&op=content&tid=8386">na ] [ ref="module.php?name=Lexikon&op=content&tid=8450">nature ] [ ref="module.php?name=Lexikon&op=content&tid=8460">nc ] [ ref="module.php?name=Lexikon&op=content&tid=8472">ne ] [ ref="module.php?name=Lexikon&op=content&tid=8622">nf ] [ ref="module.php?name=Lexikon&op=content&tid=8627">ng ] [ ref="module.php?name=Lexikon&op=content&tid=8630">ni ] [ ref="module.php?name=Lexikon&op=content&tid=8675">no ] [ ref="module.php?name=Lexikon&op=content&tid=8760">ns ] [ ref="module.php?name=Lexikon&op=content&tid=8820">O ] [ ref="module.php?name=Lexikon&op=content&tid=8838">object ] [ ref="module.php?name=Lexikon&op=content&tid=8864">object-oriented ] [ ref="module.php?name=Lexikon&op=content&tid=8866">object-oriented database ] [ ref="module.php?name=Lexikon&op=content&tid=8964">om ] [ ref="module.php?name=Lexikon&op=content&tid=9014">op ] [ ref="module.php?name=Lexikon&op=content&tid=9094">optimising compiler ] [ ref="module.php?name=Lexikon&op=content&tid=9186">overloading ] [ ref="module.php?name=Lexikon&op=content&tid=9204">pa ] [ ref="module.php?name=Lexikon&op=content&tid=9245">PAL ] [ ref="module.php?name=Lexikon&op=content&tid=9296">param ] [ ref="module.php?name=Lexikon&op=content&tid=9297">parameter ] [ ref="module.php?name=Lexikon&op=content&tid=9390">PC ] [ ref="module.php?name=Lexikon&op=content&tid=9457">pe ] [ ref="module.php?name=Lexikon&op=content&tid=9550">ph ] [ ref="module.php?name=Lexikon&op=content&tid=9651">pl ] [ ref="module.php?name=Lexikon&op=content&tid=9740">pm ] [ ref="module.php?name=Lexikon&op=content&tid=9787">polymorphism ] [ ref="module.php?name=Lexikon&op=content&tid=9821">port ] [ ref="module.php?name=Lexikon&op=content&tid=9908">pr ] [ ref="module.php?name=Lexikon&op=content&tid=9920">predecessor ] [ ref="module.php?name=Lexikon&op=content&tid=10012">product ] [ 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ref="module.php?name=Lexikon&op=content&tid=11376">si ] [ ref="module.php?name=Lexikon&op=content&tid=11387">SIG ] [ ref="module.php?name=Lexikon&op=content&tid=11389">sig ] [ ref="module.php?name=Lexikon&op=content&tid=11400">signature ] [ ref="module.php?name=Lexikon&op=content&tid=11449">simulation ] [ ref="module.php?name=Lexikon&op=content&tid=11506">sit ] [ ref="module.php?name=Lexikon&op=content&tid=11556">sm ] [ ref="module.php?name=Lexikon&op=content&tid=11565">Smalltalk ] [ ref="module.php?name=Lexikon&op=content&tid=11651">so ] [ ref="module.php?name=Lexikon&op=content&tid=11680">software ] [ ref="module.php?name=Lexikon&op=content&tid=11737">sort ] [ ref="module.php?name=Lexikon&op=content&tid=11754">SP ] [ ref="module.php?name=Lexikon&op=content&tid=11789">Spec ] [ ref="module.php?name=Lexikon&op=content&tid=11934">st ] [ ref="module.php?name=Lexikon&op=content&tid=12055">stochastic ] [ ref="module.php?name=Lexikon&op=content&tid=12090">strict ] [ ref="module.php?name=Lexikon&op=content&tid=12106">strongly typed ] [ ref="module.php?name=Lexikon&op=content&tid=12109">struct ] [ ref="module.php?name=Lexikon&op=content&tid=12133">su ] [ ref="module.php?name=Lexikon&op=content&tid=12206">support ] [ ref="module.php?name=Lexikon&op=content&tid=12246">sy ] [ ref="module.php?name=Lexikon&op=content&tid=12359">T ] [ ref="module.php?name=Lexikon&op=content&tid=12393">talk ] [ ref="module.php?name=Lexikon&op=content&tid=12416">tar ] [ ref="module.php?name=Lexikon&op=content&tid=12463">td ] [ ref="module.php?name=Lexikon&op=content&tid=12557">test ] [ ref="module.php?name=Lexikon&op=content&tid=12559">testing ] [ ref="module.php?name=Lexikon&op=content&tid=12588">th ] [ ref="module.php?name=Lexikon&op=content&tid=12721">to ] [ ref="module.php?name=Lexikon&op=content&tid=12734">tone ] [ ref="module.php?name=Lexikon&op=content&tid=12777">tp ] [ ref="module.php?name=Lexikon&op=content&tid=12787">tr ] [ ref="module.php?name=Lexikon&op=content&tid=12873">tron ] [ ref="module.php?name=Lexikon&op=content&tid=12896">tt ] [ ref="module.php?name=Lexikon&op=content&tid=12939">tw ] [ ref="module.php?name=Lexikon&op=content&tid=12970">type ] [ ref="module.php?name=Lexikon&op=content&tid=12985">tz ] [ ref="module.php?name=Lexikon&op=content&tid=12986">ua ] [ ref="module.php?name=Lexikon&op=content&tid=13146">up ] [ ref="module.php?name=Lexikon&op=content&tid=13175">us ] [ ref="module.php?name=Lexikon&op=content&tid=13252">va ] [ ref="module.php?name=Lexikon&op=content&tid=13274">var ] [ ref="module.php?name=Lexikon&op=content&tid=13275">variable ] [ ref="module.php?name=Lexikon&op=content&tid=13310">ve ] [ ref="module.php?name=Lexikon&op=content&tid=13366">vi ] [ ref="module.php?name=Lexikon&op=content&tid=13596">wart ] [ ref="module.php?name=Lexikon&op=content&tid=13877">ws ] [ ref="module.php?name=Lexikon&op=content&tid=14160">~ ]