atan2() returns the arctangent2 of a set of coordinates in radians. It is calculated similar to calculation of arctangent of y/x, but signs of both the arguments(x and y) are used to determine the quadrant of the result.
Syntax: atan2(expression1, expression2)
Returns: A Float.
Arguments
| Name | Description |
| expression1 | A numeric expression for y that represents the angle in radians. |
| expression2 | A numeric expression for x that represents the angle in radians. |
Example
RETURN atan2(0.5, 0.6)
The value returned will be the arctangent of 0.5 and 0.6 radians, which is 0.6947382761967033.
Considerations
atan2(null, null)returnsnull.atan2(expression1, null)returnsnull.atan2(null, expression2)returnsnull.
Example
RETURN atan2(0.1, 0.4)
Returns the following Result
atan2(0.1, 0.4) |
0.24497866312686414 |
Example
RETURN atan2(0.4, 0.1)
Returns the following Result
atan2(0.4, 0.1) |
1.3258176636680326 |
Example
RETURN atan2(0.8, 0)
Returns the following Result
atan2(0.8, 0) |
1.5707963267948966 |
Example
RETURN atan2(-4, -4)
Returns the following Result
atan2(-4, -4) |
-2.356194490192345 |
Example
RETURN atan2(0, 0)
Returns the following Result
atan2(0, 0) |
0.0 |
Example
RETURN atan2(1, null)
Returns the following Result
atan2(1, null) |
null |
Note– atan2(expression1, null) returns null.
Example
RETURN atan2(null, 0)
Returns the following Result
atan2(null, 0) |
null |
Note– atan2(null, expression2) returns null.
Example
RETURN atan2(null, null)
Returns the following Result
atan2(null, null) |
null |
Note– atan2(null, null) returns null.