I’m leaving my steps here for any who have gone down a similar path and still struggle to understand. Computer programming languages are used to to communicate instructions to a computer. The lisp file extension is related to translator files in LISP programming language.. Lisp (or LISP) is a family of computer programming languages with a long history and a distinctive, fully parenthesized syntax. Originally specified in 1958, Lisp is the second-oldest high-level programming language in widespread use today; only Fortran is older. Keeping true to Paul Graham, I implemented this version of LISP in Arc. Common Lisp code to create an n-inputs m-units one layer perceptron. LISP is the earliest representative of the functional programming language paradigm. Awesome Lisp Languages. It was invented in 1958, with the language being conceived by John McCarthy and is based on his paper “Recursive Functions of Symbolic Expressions and Their Computation by Machine”. List expressions. A list of lisp-flavored programming languages implemented on top of existing programming languages. Naming Conventions in LISP Name or symbols can consist of any number of alphanumeric characters other than whitespace, open and closing parentheses, double and single quotes, backslash, comma, colon, semicolon and vertical bar. If you already love s-expressions then lisp-flavored languages will make it nicer when you need to build on existing platforms. You can find the full code here. This manual contains a full description of the features of LISP I as of March 1960. They are based on certain syntactic and semantic rules, which define the meaning of each of the programming… Lisp remains at the forefront of programming language research, and the next earth shaking language will be closer to Lisp than to anything else! Taken from the code of AIMA, a classic textbook in Artificial Intelligence.The whole code here.. The system has a central core based on a class of recursive functions of symbolic expressions which should be studied first and if possible used before the more peripheral features are tried. Lisp (derives from “LISt Processing”) is one of the oldest programming languages. Why should I care as a lisp programmer? Lisp's biggest advantage is its ability to represent code as data and data as code, which most of the 'popular' languages cannot accommodate because of their convoluted syntax. But it wasn’t until I wrote this article that I gained a full grasp of the language and its power. This is the reason why we put the LISP expression in parenthesis, because we are sending the entire expression/form to the evaluator as arguments. Unlike procedural and object-oriented languages - whose theoretical model of computation is the Turing Machine, LISP's theoretical model of computation is the Lambda calculus developed by Alonzo Church. 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