Arithmetic Functions
 
 
 

The expression evaluator supports the following arithmetic functions. The words in italics can be replaced by an actual value or a variable.

Expression Description
(+ number number [number] ...) Returns the sum of all numbers.
(- number number [number] ...) Subtracts the second and following numbers from the first and returns the difference.
(* number number [number] ...) Returns the product of all numbers.
(/ number number [number] ...) Divides the first number by the product of the remaining numbers and returns the quotient.
(abs number) Returns the absolute value of the number.
(atan num1 [num2] ) Returns the arctangent of the number expressed in radians.
(cos angle) Returns the cosine of the angle expressed in radians.
(exp number) Returns the constant e (a real number) raised to a specified power (the natural antilog).
(expt basepower) Returns a number raised to a specified power.
(fix number) Returns the conversion of a real number into the nearest smaller integer.
(log number) Returns the natural log of a number as a real number.
(log10 number) Returns the base 10 logarithm for a number.
(sin angle) Returns the sine of an angle as a real number expressed in radians.
(sqrt number) Returns the square root of a number as a real number.
(tan angle) Returns the tangent of an angle, measured in radians.