ocean v6.1.0 (2021-04-20T01:38:04Z)
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Calculates the arc tangent of x, returning a value ranging from -π/2 to π/2.
Special Values
x
atan(x)
invalid?
±0.0
±0.0
no
±∞
NaN
yes
real
atan
(
real
x
)
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Calculates the arc tangent of x, returning a value ranging from -π/2 to π/2.