ArcTan
Elementary Functions
ArcTan[
z
]
Representations through equivalent functions
With related functions
Involving sec
-1
Involving tan
-1
(1-2
z
2
/2
z
(1-
z
2
)
1/2
) (5 formulas)
Involving tan
-1
(1-2
z
2
/2
z
(1-
z
2
)
1/2
) and sec
-1
(1/
z
) (5 formulas)
ArcTan[
x
,y]
