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