CS 170 * Intro to Programming for Scientists and Engineers
... • A mid-1970s dialect of LISP, designed to be a cleaner, ...
... • A mid-1970s dialect of LISP, designed to be a cleaner, ...
15. Functional Programming
... In an FPL, the evaluation of a function always produces the same result given the same parameters ...
... In an FPL, the evaluation of a function always produces the same result given the same parameters ...
LISP
... The execution of a function always produces the same result when given the same parameters. This is called referential transparency. ...
... The execution of a function always produces the same result when given the same parameters. This is called referential transparency. ...
Functional Programming: Introduction Introduction (Cont.)
... • When all functions are pure, referential transparency and the manifest interface principle are upheld, and thus: – No side-effects, rograms are much easier to formally analyze a) Once we know the local behaviors of functions, we can reason about the system in terms of independent function calls, w ...
... • When all functions are pure, referential transparency and the manifest interface principle are upheld, and thus: – No side-effects, rograms are much easier to formally analyze a) Once we know the local behaviors of functions, we can reason about the system in terms of independent function calls, w ...
Functions, recursion and lists
... Computer programs can write or manipulate other programs (or themselves) as their data If can modify themselves --- reflective programming Lisp program can be represented using Lisp atoms and lists ...
... Computer programs can write or manipulate other programs (or themselves) as their data If can modify themselves --- reflective programming Lisp program can be represented using Lisp atoms and lists ...
Chapter 11 slides
... well-defined, so applicative order can be used • A non-strict language does not require all arguments to be well-defined; it requires normal-order evaluation ...
... well-defined, so applicative order can be used • A non-strict language does not require all arguments to be well-defined; it requires normal-order evaluation ...
scheme1 - Computer Science and Electrical Engineering
... • Lisp has a small and elegant conceptual core that has not changed much in almost 50 years. • McCarthy’s original Lisp paper defined all of Lisp using just seven primitive functions • Common Lisp, developed in the 1980s as an ANSI standard, is large (>800 builtin functions), has most modern data-ty ...
... • Lisp has a small and elegant conceptual core that has not changed much in almost 50 years. • McCarthy’s original Lisp paper defined all of Lisp using just seven primitive functions • Common Lisp, developed in the 1980s as an ANSI standard, is large (>800 builtin functions), has most modern data-ty ...
COS_470-Practice
... 3. Using LISP function delete, create a LISP function uniq that will take one argument of type list and will return a list with the unique elements: Example: (uniq '(1 2 4 5 7 3 2 7 6 5 7 7 7)) ...
... 3. Using LISP function delete, create a LISP function uniq that will take one argument of type list and will return a list with the unique elements: Example: (uniq '(1 2 4 5 7 3 2 7 6 5 7 7 7)) ...
Functional Programming with Lists
... • Includes all the basic concepts of functional programming • First designed in 1958 by John McCarthy ...
... • Includes all the basic concepts of functional programming • First designed in 1958 by John McCarthy ...
Introduction to Emacs and Emacs lisp
... Linguistics interest in natural language processing Psychologies interest in modeling human info. and the process of brain Computer must be able to process symbolic data and linked lists ...
... Linguistics interest in natural language processing Psychologies interest in modeling human info. and the process of brain Computer must be able to process symbolic data and linked lists ...
LISP:Power and Elegance in ONE
... “I have heard more than one Lisp advocate state such subjective comments as, “Lisp is the most powerful and elegant programming language in the world” and expect such comments to be taken as objective truth. I have never heard a Java, C++, C, Perl, or Python advocate make the same claim about their ...
... “I have heard more than one Lisp advocate state such subjective comments as, “Lisp is the most powerful and elegant programming language in the world” and expect such comments to be taken as objective truth. I have never heard a Java, C++, C, Perl, or Python advocate make the same claim about their ...
4.6 Lisp - University of Hawaii
... Scheme and Common Lisp • Scheme is a dialect of LISP (mid-1970s) – Designed to be a cleaner and simpler version of LISP – Uses only static scoping – Functions are first-class entities • Can be the values of expressions and elements of lists • Can be assigned to variables and passed as parameters ...
... Scheme and Common Lisp • Scheme is a dialect of LISP (mid-1970s) – Designed to be a cleaner and simpler version of LISP – Uses only static scoping – Functions are first-class entities • Can be the values of expressions and elements of lists • Can be assigned to variables and passed as parameters ...
PLD VII Haddad
... – Simple syntax – Inefficient execution – Programs can automatically be made concurrent ...
... – Simple syntax – Inefficient execution – Programs can automatically be made concurrent ...
Document
... Exploring apply-to-all • Evaluate αf on the list <0, -1, 1, 2, -2> when f is o sgn, the function that returns 1 if its argument is positive, -1 if its argument is negative, and 0 ...
... Exploring apply-to-all • Evaluate αf on the list <0, -1, 1, 2, -2> when f is o sgn, the function that returns 1 if its argument is positive, -1 if its argument is negative, and 0 ...
Fall 2000 Final Exam answers
... 8. Lisp passes integers by ___value__, but passes lists by __reference___. 9. J.A. Robinson invented __resolution__, which is the basis for Prolog. 10. Prolog's unique control structure called __backtracking_ allows it to find all answers for a _goal____. 11. Prolog variables must start with a __cap ...
... 8. Lisp passes integers by ___value__, but passes lists by __reference___. 9. J.A. Robinson invented __resolution__, which is the basis for Prolog. 10. Prolog's unique control structure called __backtracking_ allows it to find all answers for a _goal____. 11. Prolog variables must start with a __cap ...
scheme1
... • It’s a simple, elegant yet powerful language • You will learn a lot about PLs from studying it • We’ll look at how to implement a Scheme interpreter in Scheme • Many features, once unique to Lisp, are now in “mainstream” PLs: python, javascript, perl, R … • It will expand your notion of what a PL ...
... • It’s a simple, elegant yet powerful language • You will learn a lot about PLs from studying it • We’ll look at how to implement a Scheme interpreter in Scheme • Many features, once unique to Lisp, are now in “mainstream” PLs: python, javascript, perl, R … • It will expand your notion of what a PL ...
1 Introduction 2 An Interpreter
... The parser creates a tree structure from the stream of tokens called a parse tree. Several checks may be performed on the finished parse tree. A statically ...
... The parser creates a tree structure from the stream of tokens called a parse tree. Several checks may be performed on the finished parse tree. A statically ...
TEKCOMMON LISP PROGRAMMING LANGUAGE - Wirfs
... Data Types and Type Declarations An extensive set of data types allows the development of sophisticated structures for complex Al systems. In addition, it is possible to declare specific types for variables, which aids debugging and promotes effi cient compiled code. The user has the choice of worki ...
... Data Types and Type Declarations An extensive set of data types allows the development of sophisticated structures for complex Al systems. In addition, it is possible to declare specific types for variables, which aids debugging and promotes effi cient compiled code. The user has the choice of worki ...
scheme1 - Department of Computer Science and Electrical
... • LISP is an acronym for LISt Processing language • Lisp is an old language with many variants – Fortran is only older language still in wide use – Lisp is alive and well today • Most modern versions are based on Common Lisp • Scheme is one of the major variants – We’ll use Scheme, not Lisp, in this ...
... • LISP is an acronym for LISt Processing language • Lisp is an old language with many variants – Fortran is only older language still in wide use – Lisp is alive and well today • Most modern versions are based on Common Lisp • Scheme is one of the major variants – We’ll use Scheme, not Lisp, in this ...
Lisp vs Scheme
... • “It differs from most current dialects of LISP in that it closes all lambdaexpressions in the environment of their definition [...], rather than in the execution environment [..., and in] that tail-recursions execute without net growth of the interpreter stack.” ...
... • “It differs from most current dialects of LISP in that it closes all lambdaexpressions in the environment of their definition [...], rather than in the execution environment [..., and in] that tail-recursions execute without net growth of the interpreter stack.” ...
Lisp (programming language)
Lisp (historically, LISP) is a family of computer programming languages with a long history and a distinctive, fully parenthesized Polish prefix notation.Originally specified in 1958, Lisp is the second-oldest high-level programming language in widespread use today; only Fortran is older (by one year). Like Fortran, Lisp has changed a great deal since its early days, and a number of dialects have existed over its history. Today, the most widely known general-purpose Lisp dialects are Common Lisp and Scheme.Lisp was originally created as a practical mathematical notation for computer programs, influenced by the notation of Alonzo Church's lambda calculus. It quickly became the favored programming language for artificial intelligence (AI) research. As one of the earliest programming languages, Lisp pioneered many ideas in computer science, including tree data structures, automatic storage management, dynamic typing, conditionals, higher-order functions, recursion, and the self-hosting compiler.The name LISP derives from ""LISt Processor"". Linked lists are one of Lisp's major data structures, and Lisp source code is itself made up of lists. As a result, Lisp programs can manipulate source code as a data structure, giving rise to the macro systems that allow programmers to create new syntax or new domain-specific languages embedded in Lisp.The interchangeability of code and data gives Lisp its instantly recognizable syntax. All program code is written as s-expressions, or parenthesized lists. A function call or syntactic form is written as a list with the function or operator's name first, and the arguments following; for instance, a function f that takes three arguments would be called as (f arg1 arg2 arg3).