Affiliation:
1. Artificial Intelligence Laboratory, Stanford University
Abstract
LISP data are symbolic expressions that can be either
atoms
of
lists. Atoms
are strings of letters and digits and other characters not otherwise used in LISP. A list consists of a left parenthesis followed by zero or more atoms or lists separated by spaces and ending with a right parenthesis. Examples: A, ONION, (), (A), (A ONION A), (PLUS B (TIMES X PI) 1), (CAR (QUOTE (A B))).
The LISP programming language is defined by rules whereby certain LISP expressions have other LISP expressions as
values
. The function called
value
that we will use in giving these rules is not part of the LISP language but rather part of the informal mathematical language used to define LISP. Likewise, the italic letters
e
and
a
(sometimes with subscripts) denote LISP expressions, the letter
v
(usually subscripted) denotes an atom serving as a variable, and the letter
f
stands for a LISP expression serving as a function name.
Publisher
Association for Computing Machinery (ACM)
Subject
Computer Graphics and Computer-Aided Design,Software
Cited by
4 articles.
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