Топ-100
 
CerebroSQL

ATAN2

Database: MySQL

68747470733a2f2f7374796c65732e7265646469746d656469612e636f6d2f74355f32716d366b2f7374796c65

Topic

Syntax:
ATAN(Y,X), ATAN2(Y,X)

Returns the arc tangent of the two variables 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.

Example

mysql> SELECT ATAN(-2,2);
-> -0.78539816339745
mysql> SELECT ATAN2(PI(),0);
-> 1.5707963267949