Outdated Version

You are viewing an older version of this section. View current production version.


Returns the arc tangent of x and y. It is similar to calculating the arc tangent of y / x, except that the signs of both arguments are used to determine the quadrant of the result.

ATAN2 (y, x), ATAN (y, x)


  • x and y: the arguments

Return Type

Float or double.

** Examples**

memsql> select atan2(1, 1);
| atan2(1, 1)        |
| 0.7853981633974483 |