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What is ATAN() in SQL?
harris910
This function returns the inverse tangent of a number. To be more specific, it returns the inverse tangent of a number in the radian float value. It is also called the arc tangent function.
Figure 1 shows the mathematical representation of the ATAN() function and Figure 2 shows the visual representation of the ATAN() function.
Syntax
ATAN(number)
Parameter
This function requires a number as a parameter.
Return Value
ATAN() returns the inverse tangent of a number (radian float value) that is sent as a parameter.
Example
/*example showing how to use ATAN(X)*/ -- positive number select ATAN(3); -- negative number select ATAN(-1); -- fractional number select ATAN(0.6);
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