SWC LISP

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Operators

Arithmetic Operators

Function Name	Required &Optional ("&") Parameters	Description	Example Text	Example Evaluation	Testing Status
+	number1 number2 &numberN	Adds numbers together	(+ 5 2)	7
-	number1 number2 &numberN	Subtracts numbers	(- 5 2)	3
*	number1 number2 &numberN	Multiplies numbers	(* 5 2)	10
/	number1 number2	Divides numbers	(/ 10 2)	5
abs	number	Returns the absolute value of number	(abs -10)	10
power	number exponent	Returns the value of numberexponent	(power 2 3)	8
minof	list-of-numbers	Returns the minimum value from a list of numbers	(minof '(2 3 7 9 1 18))	1
maxof	list-of-numbers	Returns the maximum value from a list of numbers	(maxof '(2 3 27 9 1 18))	27
neg?	number	Returns true if number is negative, nil if positive	(neg? -1)	#t
pos?	number	Returns true if number is positive, nil if negative	(pos? 1)	#t
zero?	number	Returns true if number is 0, nil if otherwise	(zero? 0)	#t
fast-factorial	number	Returns !number	(factorial 5)	120

Comparison Operators

Function Name	Required &Optional ("&") Parameters	Description	Example Text	Example Evaluation	Testing Status
ge?	number1 number2	Is number1 equal to or greater than number2?	(ge? 5 2)	#t
le?	number1 number2	Is number1 equal to or less than number2?	(le? 5 2)	#f
gt?	number1 number2	Is number1 greater than number2?	(gt? 5 2)	#t
lt?	number1 number2	Is number1 less than number2?	(lt? 5 2)	#f

Logic Operators

Function Name	Required &Optional ("&") Parameters	Description	Example Text	Example Evaluation	Testing Status
and	boolean-expression1 boolean-expression2 &boolean-expressionN	TRUE if all exprs are TRUE	(and? #t #f)	#f
or	boolean-expression1 boolean-expression2 &boolean-expressionN	TRUE if one expr is TRUE	(or #t #f)	#t
not	boolean-expression1 boolean-expression2 &boolean-expressionN	TRUE if expr is not TRUE	(not #t)	#f

• Scripting
• SWC LISP/Debugging and Errors
• SWC LISP/Admin-Only Functions
• SWC LISP/Modules