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1. Top results related to lisp (programming language)

   • Lisp vs Erlang Programming Language

     Lisp is the High-Level Programming Language invented by John McCarthy in 1958 at the Massachusetts Institute of Technology (MIT). Lisp is the second-oldest high-level programming language in widespread use today. The name Lisp is derived from ‘List Processing Language’. Lisp programs deal with source code as a data structure.

     It is suitable for Artificial Intelligence programs because it processes symbolic information effectively.

     Properties of Lisp:

     • High-Level Programming Language 
     • Machine Independent Language
     • Include Object-Oriented Programming
     • Includes High debugging Feature
     • Includes full I/O Library
     • Expression Based Language

     Syntax:

     Lisp

     (write-line "value to print")-

     Here write-line is the Print statement used to print some values

     Check the images on geeksforgeeks

      

     Erlang is a general-purpose language. Erlang was developed by Joe Armstrong, Robert Virding, and Mike Williams in 1986. It supports concurrency, distribution, and fault tolerance. When Erlang was created it was created to be used in several large telecommunication systems.

     Now it is used in diverse sectors like e-commerce, computer telephony, banking sectors, etc.

     Properties of Erlang:

     Functional Programming language...

     • Functional Programming language

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     1/5

   • Lisp vs Erlang Programming Language

     Lisp is the High-Level Programming Language invented by John McCarthy in 1958 at the Massachusetts Institute of Technology (MIT). Lisp is the second-oldest high-level programming language in widespread use today. The name Lisp is derived from ‘List Processing Language’. Lisp programs deal with source code as a data structure.

     It is suitable for Artificial Intelligence programs because it processes symbolic information effectively.

     Properties of Lisp:

     • High-Level Programming Language 
     • Machine Independent Language
     • Include Object-Oriented Programming
     • Includes High debugging Feature
     • Includes full I/O Library
     • Expression Based Language

     Syntax:

     Lisp

     (write-line "value to print")-

     Here write-line is the Print statement used to print some values

     Check the images on geeksforgeeks

      

     Erlang is a general-purpose language. Erlang was developed by Joe Armstrong, Robert Virding, and Mike Williams in 1986. It supports concurrency, distribution, and fault tolerance. When Erlang was created it was created to be used in several large telecommunication systems.

     Now it is used in diverse sectors like e-commerce, computer telephony, banking sectors, etc.

     Properties of Erlang:

     Functional Programming language...

     • Functional Programming language

     Check all answers on Geeksforgeeks

     2/5

   • LUA vs LISP Programming Language

     LUA is an open source Programming language created by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes in 1993. It is implemented in the C Programming language. Its main use case is in Large server systems and mobile applications. It helps in automatic memory management and handling strings very efficiently.

     Some Features of LUA:

     • LUA is Extensible Programming Language.
     • It is Portable and easy to use
     • It is an Open-source Programming language which means anyone can use it for free.
     • It is efficient in handling Dynamic size data structures.
     • It is used in Scripting Applications.
     • It is used in Web scripting.

     Syntax:

     print(output)

     print is the Print statement to output anything.

     Example: 

     C++

     --THIS CODE IS WRITTEN IN LUA-- print("Hello World")-

     Output:

     Hello World

     LISP is a high-level Programming language created by John McCarthy in 1958 at the...

     Check all answers on Geeksforgeeks

     3/5

   • LISP conditional programming

     Top Answer

     Answered Nov 16, 2015 · 1 votes

     You can, of course, nest conds as deeply as you wish:

     (defun funny-compare (a b c) (cond ((= a b) (cond ((= a c) 'all-equal) (t 'only-two-equal))) ((< a b) 'less) ((> a b) 'greater)))

     Here are some examples:

     CL-USER> (funny-compare 1 1 1);;=> ALL-EQUALCL-USER> (funny-compare 1 1 2);;=> ONLY-TWO-EQUALCL-USER> (funny-compare 1 2 2);;=> LESSCL-USER> (funny-compare 2 1 2);;=> GREATER

     You just need to take care of placing the respective clauses into the correct cond. Automatic indenting (as well as matching parentheses and some other visual aid) makes this very trivial. Taking the code you gave above and letting emacs format it gives me:

     (cond ((= a b) (cond ( (= b c) (print 'a=b=c) ) ) (> a b) (print 'a>b) (< a b) (print 'a<b)) )-

     Looking closely, you can see that all s-expressions, beginning with (= a b) up to (< a b) and (print 'a<b) are in the same group of parentheses: the one which delimits a case of the outer cond. Therefore, all of these expressions are part of the first case, and as such you only have a single case.

     What you want is this:

     (cond ((= a b) (cond ((= b c) (print 'a=b=c)))) (> a b) (print 'a>b) (< a b) (print 'a<b))

     Look closely at the indentation!

     But approaching your original problem: You should try to express the ideas you want to program in your code. You write about "circles" and such, but your code isn't expressing any of this (a, b, c and such are seldom good names).

     Start with putting your idea of a circle into code:

     (defun make-circle (x y z r) (list x y z r))(defun circle-x (circle) (first circle))(defun circle-y (circle) (second circle))(defun circle-z (circle) (third circle))(defun circle-radius (circle) (nth 3 circle))

     Then, what you want to check are multiple independent conditions. You don't need multiple conds for that, in fact, it's a lot better to be explicit with and:

     (cond ((and (= (circle-x one) (circle-x other)) (= (circle-y one) (circle-y other)) (= (circle-radius one) (circle-radius other)) (not (= (circle-z one) (circle-z other)))) 'planar-not-same-but-on-axis-parallel-to-z))

     Note that this is not idiomatic lisp, because it's a lot to write that is essentially unnecessary and we need to repeat us a lot. There are a lot of tools (defclass, defstruct, accessor functions, with-slots, ...) available to shorten this. Thanks to the power of a list, we can even get rid of the repeated use of =:

     (flet ((extract (circle) (list (circle-x circle) (circle-y circle) (circle-radius)))) (when (and (every #'= (extract one) (extract other)) (not (= (circle-z one) (circle-z other)))) 'planaer-not-same-but-on-axis-parallel-to-z))

     Note that I also got rid of the cond, because a cond with a single case isn't exactly good code style: Use it only when you have more than twwo branches (for two branches use if).

     I hope this helps you a bit along.

     Check all answers on Stack Overflow

     4/5

   • How to read file and save data On LISP programming language

     Top Answer

     Answered Jun 05, 2017 · 1 votes

     get-file ("sample.txt")-

     Are two expressions.. One that evaluates the variable get-file since it is not used as a function. Then you have the expression ("sample.txt") which tries to take the string "sample.txt" and call it as if it was a function with no arguments.

     The reason for this is that you are writing algol syntax, as if it was C or Java. You need to write lisp syntax when you are writing lisp, like this:

     (get-file "sample.txt")-

     The path name is relative to the path you start the program so if you start the program from the same directory as you lisp file it will open files there. If you were at your home directory the path is relative to that unless you use absolute path.

     In order to save data you need to open a file to save to and output to that file. How it is now you just make a list of the lines and that is returned no screen in the REPL.

     You may split the string by space. You can convert the strings that represent numbers to numbers by using parse-number. An unsafe way would be (read-from-string "3.0") ; ==> 3.0

     You need to prepare yourself to learn a new language. It has different syntax than C, which is based on Algol. Almost all programming languages today are so if you know several languages you know perhaps several dialects of the same language. Give it time and you'll have a new favorite programming language soon..

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     5/5

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2. en.wikipedia.org › wiki › Lisp_(programming_language)Lisp (programming language) - Wikipedia

   en.wikipedia.org › wiki › Lisp_(programming_language)

   • Cached

   Lisp (programming language) Lisp (historically LISP, an abbreviation of "list processing") is a family of programming languages with a long history and a distinctive, fully parenthesized prefix notation. [3] . Originally specified in the late 1950s, it is the second-oldest high-level programming language still in common use, after Fortran.

3. lisp-lang.orgCommon Lisp

   lisp-lang.org

   • Cached

   Common Lisp is a language that can evolve and adapt to new abstractions, such as object-oriented programming and SQL. It has great tools, such as SLIME and Woo, and is used by companies like Grammarly and Google for fast and scalable applications.

4. www.geeksforgeeks.org › introduction-to-lispIntroduction to LISP - GeeksforGeeks

   www.geeksforgeeks.org › introduction-to-lisp

   • Cached

   Mar 17, 2022 · Learn the basics of LISP, a programming language that uses expressions and functions. Find out its features, syntax, naming conventions, and examples.

5. lisp-lang.org › learnLearn Common Lisp | Common Lisp

   lisp-lang.org › learn

   • Cached

   Learn Common Lisp. This section contains Common Lisp tutorials and more in-depth guides on specific subjects. Alternatively, you can checkout the books section and find a tutorial you like.

6. People also ask

   What is Common Lisp?

   • Common Lisp is a general-purpose programming language and thus has a large language standard including many built-in data types, functions, macros and other language elements, and an object system ( Common Lisp Object System ). Common Lisp also borrowed certain features from Scheme such as lexical scoping and lexical closures.

   Lisp (programming language) - Wikipedia

   en.wikipedia.org/wiki/Lisp_(programming_language)

   See all results for this question

   What does Lisp stand for?

   • Lisp (historically LISP, an abbreviation of "list processing") is a family of programming languages with a long history and a distinctive, fully parenthesized prefix notation. Originally specified in the late 1950s, it is the second-oldest high-level programming language still in common use, after Fortran.

   Lisp (programming language) - Wikipedia

   en.wikipedia.org/wiki/Lisp_(programming_language)

   See all results for this question

   Is there a Common Lisp function?

   • There is a built-in Common Lisp function to compute it. OBJECT2 is metal but OBJECT3 is plastic, so METAL and PLASTIC are properties not common to both. We can classify properties according to the type of quality to which they refer. Here is a table, represented as a list of dotted pairs:

   COMMON LISP: A Gentle Introduction to Symbolic Computation

   www.cs.cmu.edu/~dst/LispBook/book.pdf

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   What makes Lisp a good programming language?

   • The interchangeability of code and data gives Lisp its instantly recognizable syntax. All program code is written as s-expressions, or parenthesized lists.

   Lisp (programming language) - Wikipedia

   en.wikipedia.org/wiki/Lisp_(programming_language)

   See all results for this question

7. lisp-docs.github.io › docs › tutorialCommon Lisp for Beginner Programmers | Common Lisp Docs

   lisp-docs.github.io › docs › tutorial

   • Cached

   Beginner Programmers. Common Lisp for Beginner Programmers. The goal of this tutorial is to teach the concepts clearly with tons of examples. Beyond that, reading and referencing the Technical Reference will provide more depth. Alternatively to this tutorial, you can read for free any of the following books:

8. lisp-lang.org › learn › getting-startedGetting Started | Common Lisp

   lisp-lang.org › learn › getting-started

   • Cached

   Getting Started. This article describes what you need to do to get up and running with Common Lisp. For the fastest solution, see Portacle. It is a portable and multiplatform development environment, with no installation needed.

9. www.cs.cmu.edu › ~dst › LispBookCOMMON LISP: A Gentle Introduction to Symbolic Computation

   www.cs.cmu.edu › ~dst › LispBook

   the principal language of artificial intelligence research—one of the most advanced areas of computer science—Lisp is an excellent language for beginners. It is increasingly the language of choice in introductory programming courses due to its friendly, interactive environment, rich data