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Start at both ends
Return the arc tangent of two values:
SELECT ATAN2(0.50, 1);The ATAN2() function returns the arc tangent of two numbers.
a, b )
Description a, b Required. Two numeric values to calculate the arc tangent of
From MySQL 4.0
Return the arc tangent of two values:
SELECT ATAN2(-0.8, 2);❮ MySQL Functions