Oracle9i SQL Reference Release 1 (9.0.1) Part Number A90125-01 |
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Functions, 10 of 166
atan2::=
atan2
ATAN2
returns the arc tangent of n and m
. Inputs are in an unbounded range, and outputs are in the range of -pi to pi, depending on the signs of n and m, and are expressed in radians. ATAN2
(n,
m) is the same as ATAN2
(n/
m)
The following example returns the arc tangent of .3 and .2:
SELECT ATAN2(.3, .2) "Arc_Tangent2" FROM DUAL; Arc_Tangent2 ------------ .982793723
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