ATAN2 is one of the vital Numeric/Math functions of Oracle. It is used to get the arc TANGENT of two numbers. The ATAN2 function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.
Syntax:
ATAN2 ( x, y )
Parameters: x, y: It is used to specify the numbers to get the arc tangent value of.
Example 1:
ATAN2 (0, 1) |
Output:
0
Explanation: The Arc tangent means the inverse of the tangent. The arc tangent2 value of 0 and 1 is 0 degrees i.e, 0 radians, and so is the result.
Example 2:
ATAN2 (1, 0) |
Output:
1.57079632
Explanation: The Arc tangent means the inverse of the tangent. The arc tangent2 value of 1 and 0 is 1.57079632 radians, and so is the result.
