- Categories:
Numeric functions (Trigonometric)
ATAN¶
Computes the inverse tangent (arc tangent) of its argument; the result is a number in the interval[-pi,pi].
Syntax¶
ATAN(<real_expr>)
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Arguments¶
real_exprThis expression should evaluate to a real number.
Returns¶
Returns the arc tangent in radians (not degrees) in the range[-pi,pi].
Examples¶
SELECTATAN(1);--------------+ATAN(1) |--------------+0.7853981634 |--------------+Copy