LISP Functions
(ascii)

(assoc)

(atan)

(assoc item list)

Find the first matching item in the list.

This function finds and returns the first sublist in list whose first element matches the association item. The list may contain dotted pairs from the cons and entget functions.

Examples

Code Returns
(setq bigl '((a b c)(d)(e f g)))
(assoc 'e bigl) 		(E F G)
(setq elist (entget (car (entsel "Select entity:")))) (princ (strcat "\nYou selected a " (cdr (assoc 0 elist))))  

NOTE This function is often used in conjunction with the dotted pairs returned by the cons and entget functions.

Tell me about...

(length list)

(mapcar function list1 [list2 ...])

(member item list)

(nth integer list)

(subst new old list)

LISP Compatibility

Programming Overview of LISP (LISt Processing) Language