1) Write a function filter which takes a list and a predicate, and returns the list of the elements from the original list for which the predicate returns true. (There are actually LISP built-ins to …

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.

For example, if you want to compute the value of (2 * cos (0) * (4 + 6)), you type in: before prompting you to enter the next expression. Several things are worth noting: LISP expressions …

Lisp was invented by John McCarthy in 1958 while he was at the Massachusetts Institute of Technology (MIT). This reference will take you through simple and practical approach while …

The sample program displayed below demonstrates how Lisp programs are written and used. The program creates a queue, a buffer to which you can add or remove items.

Mar 17, 2022 · Lisp is a programming language that has an overall style that is organized around expressions and functions. Every Lisp procedure is a function, and when called, it returns a …

"One of the most important and fascinating of all computer languages is Lisp (standing for "List Processing"), which was invented by John McCarthy around the time Algol was invented."

If we want to account for list equivalence, we could have used the LISP built-in function equal instead of eq. Common LISP defines the following set of predicates for testing equality:

Example 9.1. Simple Example. :output '(:lilypond :view t) :parts. (list. (make-part. :name "Piano" :instr :piano. :events. (loop. for off from 0 to 10 by 1/2. collect (make-note :off off. :dur (if (< off …

Example showing how symbols point to function objects to its arguments. Note how we have to use to sharp-quote (#') to pass the + function as an object into