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<H1><A ID="SECTION00110000000000000000"><tex2html_anchor_invisible_mark></A>
<A ID="FUNCTION-NAME-SECTION"><tex2html_anchor_mark></A><BR>
Constants and Variables
</H1>
<P>
Because some Lisp data objects are used to represent programs,
one cannot always notate a constant data object in a program simply
by writing the notation for the object unadorned; it would be ambiguous
whether a constant object or a program fragment was intended.
The <#30#>quote<#30#> special form resolves this ambiguity.
<P>
There are two kinds of variables in Common Lisp, in effect: ordinary
variables and function names. There are some similarities between
the two kinds, and in a few cases there are similar functions for
dealing with them, for example <#31#>boundp<#31#> and <#32#>fboundp<#32#>.
However, for the most part the two kinds of variables are
used for very different purposes: one to name defined functions,
macros, and special forms, and the other to name data objects.
<P>
<BR>
<tex2html_image_mark>#newer33#
<BR>
<P>