Arithmetic Functions Reference (AutoLISP)

The following table provides summary descriptions of the AutoLISP arithmetic functions.

Arithmetic functions		Platforms
		Windows		Mac OS		Web
Function	Description	AutoCAD	AutoCAD LT	AutoCAD	AutoCAD LT	AutoCAD
(+ [number number ...])	Returns the sum of all numbers	✓	✓	✓	--	✓
(- [number number ...])	Subtracts the second and following numbers from the first and returns the difference	✓	✓	✓	--	✓
(* [number number ...])	Returns the product of all numbers	✓	✓	✓	--	✓
(/ [number number ...])	Divides the first number by the product of the remaining numbers and returns the quotient	✓	✓	✓	--	✓
(~ int)	Returns the bitwise NOT (1's complement) of the argument	✓	✓	✓	--	✓
(1+ number)	Returns the argument increased by 1 (incremented)	✓	✓	✓	--	✓
(1- number)	Returns the argument reduced by 1 (decremented)	✓	✓	✓	--	✓
(abs number)	Returns the absolute value of the argument	✓	✓	✓	--	✓
(atan num1 [num2])	Returns the arctangent of a number in radians	✓	✓	✓	--	✓
(cos ang)	Returns the cosine of an angle expressed in radians	✓	✓	✓	--	✓
(exp number)	Returns the constant e (a real) raised to a specified power (the natural antilog)	✓	✓	✓	--	✓
(expt base power)	Returns a number raised to a specified power	✓	✓	✓	--	✓
(fix number)	Returns the conversion of a real into the nearest smaller integer	✓	✓	✓	--	✓
(float number)	Returns the conversion of a number into a real	✓	✓	✓	--	✓
(gcd int1 int2)	Returns the greatest common denominator of two integers	✓	✓	✓	--	✓
(log number)	Returns the natural log of a number as a real	✓	✓	✓	--	✓
(logand [int int ...])	Returns the result of the logical bitwise AND of a list of integers	✓	✓	✓	--	✓
(logior [int int ...])	Returns the result of the logical bitwise inclusive OR of a list of integers	✓	✓	✓	--	✓
(lsh [int numbits])	Returns the logical bitwise shift of an integer by a specified number of bits	✓	✓	✓	--	✓
(max [number number ...])	Returns the largest of the numbers given	✓	✓	✓	--	✓
(min [number number ...])	Returns the smallest of the numbers given	✓	✓	✓	--	✓
(minusp number)	Verifies that a number is negative	✓	✓	✓	--	✓
(rem [num1 num2 ...])	Divides the first number by the second, and returns the remainder	✓	✓	✓	--	✓
(sin ang)	Returns the sine of an angle as a real expressed in radians	✓	✓	✓	--	✓
(sqrt number)	Returns the square root of a number as a real	✓	✓	✓	--	✓
(zerop number)	Verifies that a number evaluates to zero	✓	✓	✓	--	✓