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- ; This is a programming example of a recursive function
- ; which calculates the factorial of an integer.
-
- (defun factor (y)
- (cond ((= 0 y) 1)
- (t (* y (factor (1- y))))
- )
- )
-
- (defun C:FACT (/ x)
- (initget 7) ;x must not be null, negative or zero
- (setq x (getint "Enter an integer: "))
- (factor (float x))
- )
-