Operators in LISP

Arithmetic Operators in LISP

Last Updated : 21 Sep, 2021

Arithmetic operators are used to perform mathematical operations like addition, subtraction, multiplication, and division.

There are 7 arithmetic operators in LISP that are listed in the below table:

Operator	Syntax	Description
Addition Operator(+)	+ num1 num2	Add the two numbers
Subtraction Operator(-)	- num1 num2	Subtract the second number from the first number
Multiplication(*)	* num1 num2	Multiply two numbers
Division(/)	/ num1 num2	Divide the two numbers
Modulus(mod)	mod num1 num2	Get the remainder of two numbers
Increment(incf)	incf num value	Increment number by given value
Decrement(decf)	decf num value	Decrement number by given value

Example 1: LISP Program that demonstrates arithmetic operators

Lisp

;set value 1 to 300
; set value 2 to 600
(setq val1 300)
(setq val2 600)

;addition operation
(print (+ val1 val2))

;subtraction operation
(print (- val1 val2))

;multiplication operation
(print (* val1 val2))

;division operation
(print (/ val1 val2))

;modulus operation
(print (MOD val1 val2))

;increment a by 10
(print (incf val1 val2))

;decrement b by 20
(print (decf val1 val2))

Output:

Example 2:

Lisp

;set value 1 to 30
; set value 2 to 15
(setq val1 30)
(setq val2 15)

;addition operation
(print (+ val1 val2))

;subtraction operation
(print (- val1 val2))

;multiplication operation
(print (* val1 val2))

;division operation
(print (/ val1 val2))

;modulus operation
(print (MOD val1 val2))

;increment a by 10
(print (incf val1 val2))

;decrement b by 20
(print (decf val1 val2))

Output:

Operators in LISP

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