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MYSQL

ATAN (X,Y )


Description

The ATAN (X,Y) function returns the arc tangent of two variables X and Y.

This function has the form:

SELECT ATAN(x, y)
Parameter Description
x, y Two numbers

Return Value

The arc tangent of two variables X and Y.

Examples

The following example shows the basic use of this function:

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


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