Description
Calculates the arctangent of an angle.
Syntax
ATan ( n )
| 
                                            
                               Argument  | 
                           
                                            
                               Description  | 
                        
|---|---|
| 
                                            
                               n  | 
                           
                                            
                               The ratio of the lengths of two sides of a triangle for which you want a corresponding angle (in radians)  | 
                        
Return value
Double. Returns the arctangent of n.
Examples
This statement returns 0:
ATan(0)
This statement returns 1.000 (rounded to three places):
ATan(1.55741)
This statement returns 1.267267 (rounded to six places):
ATan(Pi(1))
See also
ATan method for DataWindows in the section called “ATan” in DataWindow Reference.


