lisp, differences in assignment functions

Posted by johnc on Stack Overflow See other posts from Stack Overflow or by johnc
Published on 2010-04-18T22:51:37Z Indexed on 2010/04/18 22:53 UTC
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I'm pretty new to lisp, so apologies for what may be a simple question,

Whilst I understand the difference between DEFVAR and DEFPARAMETER (defvar only sets undefined variables), and the LET is for local scope only, what is the is the use of SETF as opposed to the other, previously mentioned assignment functions?

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