funprog
... E1, E2,...,En - E1 should evaluate to a function and then apply the function value of E1 to the arguments given by the values of E2,...,En. In the base case, there are self evaluating expressions (e.g. numbers and symbols). In addition, various special forms such as quote and if must be handled sep ...
... E1, E2,...,En - E1 should evaluate to a function and then apply the function value of E1 to the arguments given by the values of E2,...,En. In the base case, there are self evaluating expressions (e.g. numbers and symbols). In addition, various special forms such as quote and if must be handled sep ...
LISP:Power and Elegance in ONE
... Java, C++, C, Perl, or Python advocate make the same claim about their own language of choice” - A guy on Slashdot.com “Lisp… made me aware that software could be close to executable mathematics.” -L. Peter Deutsch ...
... Java, C++, C, Perl, or Python advocate make the same claim about their own language of choice” - A guy on Slashdot.com “Lisp… made me aware that software could be close to executable mathematics.” -L. Peter Deutsch ...
TEKCOMMON LISP PROGRAMMING LANGUAGE - Wirfs
... open-ended programming style—an essential element for Al development and the rapid prototyping of concepts. ...
... open-ended programming style—an essential element for Al development and the rapid prototyping of concepts. ...
Order of Growth - inst.eecs.berkeley.edu
... Exercise: Define the map_fn procedure in Scheme – map_fn should take a function name and a list, returning a new list with the function applied to each element of the old list: STk> (map_fn (lambda (x) (* x x)) '(1 2 3 4)) ...
... Exercise: Define the map_fn procedure in Scheme – map_fn should take a function name and a list, returning a new list with the function applied to each element of the old list: STk> (map_fn (lambda (x) (* x x)) '(1 2 3 4)) ...
Class Notes 2b: Scheme Reference
... languages their flexibility and expressive power: programs can be manipulated dynamically. • A one-page interpreter of LISP in LISP was the basis of the first ever bootstrapping implementation of a programming language (a very powerful technique). CSI 3125, Scheme, page 4 ...
... languages their flexibility and expressive power: programs can be manipulated dynamically. • A one-page interpreter of LISP in LISP was the basis of the first ever bootstrapping implementation of a programming language (a very powerful technique). CSI 3125, Scheme, page 4 ...
Common Lisp - cse.sc.edu
... Cons and Implicit Typing • Lisp uses lists as its primary data structure. • Lists are constructed similarly to other functional languages, using cons, append, etc. • Data is implicitly typed in list and can therefore be mixed in a given list. • For example, (cons ‘a (2 3)) evaluates to (a 2 3). ...
... Cons and Implicit Typing • Lisp uses lists as its primary data structure. • Lists are constructed similarly to other functional languages, using cons, append, etc. • Data is implicitly typed in list and can therefore be mixed in a given list. • For example, (cons ‘a (2 3)) evaluates to (a 2 3). ...
CS 345 - Programming Languages
... • Iteration ↔ Tail recursion • Scheme implementations must implement tailrecursive functions as iteration slide 12 ...
... • Iteration ↔ Tail recursion • Scheme implementations must implement tailrecursive functions as iteration slide 12 ...
Functional programming in Scheme.
... • Iteration Tail recursion • Scheme implementations must implement tailrecursive functions as iteration slide 12 ...
... • Iteration Tail recursion • Scheme implementations must implement tailrecursive functions as iteration slide 12 ...
Continuations in Scheme
... • Scheme provides some primitive built-ins that can create these and other control functions • call-with-current-continuation is the main one – typically also bound to call/cc • call/cc provides a way to escape out of computation to someplace higher on the stack • It’s used to create other powerful ...
... • Scheme provides some primitive built-ins that can create these and other control functions • call-with-current-continuation is the main one – typically also bound to call/cc • call/cc provides a way to escape out of computation to someplace higher on the stack • It’s used to create other powerful ...
continuations
... • Scheme provides some primitive built-ins that can create these and other control functions • call-with-current-continuation is the main one – typically also bound to call/cc • call/cc provides a way to escape out of computation to someplace higher on the stack • It’s used to create other powerful ...
... • Scheme provides some primitive built-ins that can create these and other control functions • call-with-current-continuation is the main one – typically also bound to call/cc • call/cc provides a way to escape out of computation to someplace higher on the stack • It’s used to create other powerful ...
Lisp, Then and Now
... For a function: The arguments are evaluated and their values passed to the function ...
... For a function: The arguments are evaluated and their values passed to the function ...
scheme1 - Computer Science and Electrical Engineering
... Pure Lisp and Common Lisp • 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 function ...
... Pure Lisp and Common Lisp • 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 function ...
scheme1
... • LISP is an acronym for LISt Processing language • Lisp is an old language with many variants – Fortran is the 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, ...
... • LISP is an acronym for LISt Processing language • Lisp is an old language with many variants – Fortran is the 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, ...
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 ...
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 ...
Lisp vs Scheme
... • No more name clashes! Once and for all!!! • Basic issue in almost all name clash problems: How to reconstruct the origin of a name? • In CL: Don’t lose the origin! The same symbol always names the same concept! • In other words: symbols have identity, while in other languages, names don’t. ...
... • No more name clashes! Once and for all!!! • Basic issue in almost all name clash problems: How to reconstruct the origin of a name? • In CL: Don’t lose the origin! The same symbol always names the same concept! • In other words: symbols have identity, while in other languages, names don’t. ...
COP4020 Homework Assignment 2
... elements: (value left-tree right-tree). For example, a tree with one node R (the root) is represented by (R () ()). (The empty lists represent the (empty) left and right child trees.) Given the tree: ...
... elements: (value left-tree right-tree). For example, a tree with one node R (the root) is represented by (R () ()). (The empty lists represent the (empty) left and right child trees.) Given the tree: ...
COP4020 Homework Assignment 2
... What is the list representation for this tree? Show the internal Scheme list nodes for this list, i.e. what is Scheme’s internal data structure? 4. Why is Scheme called homoiconic? 5. Function pointers in C allow functions to be passed to other functions (also sometimes referred to as “callbacks”). ...
... What is the list representation for this tree? Show the internal Scheme list nodes for this list, i.e. what is Scheme’s internal data structure? 4. Why is Scheme called homoiconic? 5. Function pointers in C allow functions to be passed to other functions (also sometimes referred to as “callbacks”). ...
Scheme (programming language)
Scheme and Common Lisp are the two principal dialects of the computer programming language Lisp. Unlike Common Lisp, however, Scheme follows a minimalist design philosophy that specifies a small standard core accompanied by powerful tools for language extension.Scheme was created during the 1970s at the MIT AI Lab and released by its developers, Guy L. Steele and Gerald Jay Sussman, via a series of memos now known as the Lambda Papers. It was the first dialect of Lisp to choose lexical scope and the first to require implementations to perform tail-call optimization, giving stronger support for functional programming and associated techniques such as recursive algorithms. It was also one of the first programming languages to support first-class continuations. It had a significant influence on the effort that led to the development of Common Lisp.The Scheme language is standardized in the official IEEE standard and a de facto standard called the Revisedn Report on the Algorithmic Language Scheme (RnRS). The most widely implemented standard is R5RS (1998); a new standard, R6RS, was ratified in 2007. Scheme has a diverse user base due to its compactness and elegance, but its minimalist philosophy has also caused wide divergence between practical implementations, so much that the Scheme Steering Committee calls it ""the world's most unportable programming language"" and ""a family of dialects"" rather than a single language.