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If you would like to use Python UDFs, create the UDFs prior to that date.
Existing Python UDFs will continue to function as normal. For more information, see the
blog post
ATAN2 function
ATAN2 is a trigonometric function that returns the arc tangent of one number
divided by another number. The return value is in radians and is between PI/2
and -PI/2
.
Syntax
ATAN2(number1, number2)
Arguments
- number1
-
A
DOUBLE PRECISION
number. - number2
-
A
DOUBLE PRECISION
number.
Return type
DOUBLE PRECISION
Examples
To return the arc tangent of 2/2
and multiply it by 4, use the following example.
SELECT ATAN2(2,2) * 4 AS PI;
+-------------------+ | pi | +-------------------+ | 3.141592653589793 | +-------------------+
To convert the arc tangent of 1/0
(which evaluates to 0) to the equivalent
number of degrees, use the following example.
SELECT (ATAN2(1,0) * 180/(SELECT PI())) AS degrees;
+---------+ | degrees | +---------+ | 90 | +---------+