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Turing was widely used in high schools in Ontario as an introduction to programming. [2] On November 28, 2007, Turing, which was previously a commercial programming language, became freeware, available to download from the developer's website free of charge for personal, commercial, and educational use. [3] [4] [5]
Now, supposing that there were some algorithm capable of settling the halting problem, i.e. a Turing machine TEST(e) which given the description number of some Turing machine would return 1 if the Turing machine halts on every input, or 0 if there are some inputs that would cause it to run forever. By combining the outputs of these machines, it ...
TXL is a special-purpose programming language originally designed by Charles Halpern-Hamu and James Cordy at the University of Toronto in 1985. The acronym "TXL" originally stood for "Turing eXtender Language" after the language's original purpose, the specification and rapid prototyping of variants and extensions of the Turing programming language, but no longer has any meaningful interpretation.
Nutshell description of a RASP: The RASP is a universal Turing machine (UTM) built on a random-access machine RAM chassis.. The reader will remember that the UTM is a Turing machine with a "universal" finite-state table of instructions that can interpret any well-formed "program" written on the tape as a string of Turing 5-tuples, hence its universality.
Code execution at compile time. The Elixir compiler also runs on the BEAM, so modules that are being compiled can immediately run code which has already been compiled. Polymorphism via a mechanism called protocols. Dynamic dispatch, as in Clojure, however, without multiple dispatch because Elixir protocols dispatch on a single type.
Furthermore, the Heirloom Project Development Tools includes a free version of the m4 language, derived from OpenSolaris. M4 has been included in the Inferno operating system. This implementation is more closely related to the original m4 developed by Kernighan and Ritchie in Version 7 Unix than its more sophisticated relatives in UNIX System V ...
James Reginald Cordy (born January 2, 1950) is a Canadian computer scientist and educator who is Professor Emeritus in the School of Computing at Queen's University.As a researcher he is most recently active in the fields of source code analysis and manipulation, software reverse and re-engineering, and pattern analysis and machine intelligence.
As stated, the design goal for Befunge was to create a language which was difficult to compile. This was attempted with the implementation of self-modifying code (the 'p' instruction can write new instructions into the playfield) and a multi-dimensional playfield (the same instruction can be executed in four different directions).