lambda

(lambda ( [argList] [ / varsList ] ) expr expr ... )

This function defines a Lambda function, using argList as list of arguments, varsList as list of local variables, and expr is a sequence of 1 or more Lisp expressions (the function body).

Arguments	argList a list of symbol names, used as arguments passed when this lambda is called varsList list of symbol names for the local variables expr a sequence of Lisp expressions
Return	the value of the last evaluated expression
Example	(apply '(lambda ( x y ) (* x y))) '(5 20)) 100 (mapcar '(lambda (x) (* x 5)) '(1 2 3 4 5.0)) (5 10 15 20 25.0)
Remarks	a LAMBDA function is an "unnamed defun", see defun function, often used with mapcar and apply