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