The ATAN Function
General Format
Arguments
Argument-1 must be class numeric.
Returned Values
The returned value is the approximation of the arctangent of argument-1 and is greater than -pi/2 and less than +pi/2.
Note:
Conversion factors from radians to degrees and Gon (grad) are specified in the section
Trigonometric Functions
.
Floating-point format is used for numeric non-integer results.
Parent topic:
Definitions of Functions
Related information
Trigonometric Functions