This outline is also available in PDF.
Held: Wednesday, 30 September 2009
Summary: We consider why and how you name values within a procedure, and limit access to those names to within the procedure.
lethas the form
(let ((name1 exp1) (name2 exp2) ... (namen expn)) body)
lethas the meaning:
letin a simple expression:
(define values (list 1 4 2 4 1 5 9)) (let ((largest (max values)) (smallest (min values))) (/ (+ largest smallest) 2))
letwithin a procedure.
let*has the form
(let* ((name1 exp1) (name2 exp2) ... (namen expn)) body)
let*has the meaning:
I usually create these pages
on the fly, which means that I rarely
proofread them and they may contain bad grammar and incorrect details.
It also means that I tend to update them regularly (see the history for
more details). Feel free to contact me with any suggestions for changes.
This document was generated by
Siteweaver on Fri Dec 11 09:38:43 2009.
The source to the document was last modified on Fri Aug 21 17:03:06 2009.
This document may be found at
You may wish to validate this document's HTML ; ;Samuel A. Rebelsky, firstname.lastname@example.org
http://creativecommons.org/licenses/by-nc/2.5/or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.