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