In Oracle/PLSQL, the atan function returns the arc tangent of a number.
Syntax
The syntax for the atan function is:
atan( number )
number is the number used to calculate the arc tangent.
Applies To
For Example
| atan(0.2) | would return 0.197395559849881 |
| atan(0.35) | would return 0.336674819386727 |
| atan(-0.15) | would return -0.148889947609497 |