# Getting inverse tangent and inverse hyperbolic tangent in Julia – atan(), atanh() and atand() Methods

• Last Updated : 26 Mar, 2020

The `atan()` is an inbuilt function in julia which is used to calculate inverse tangent of the specified value and output is in radians.

Syntax: atan(x)

Parameters:

• x: Specified values.

Returns: It returns the calculated inverse tangent of the specified value and output is in radians.

Example:

 `# Julia program to illustrate ``# the use of atan() method`` ` `# Getting inverse tangent of the specified``# values and output is in radians.``println(atan(``0``))``println(atan(``-``0.444``))``println(atan(``0.7774``))``println(atan(``1``))`

Output:

```0.0
-0.41785313434757676
0.6608077411382699
0.7853981633974483```

The `atanh()` is an inbuilt function in julia which is used to calculate inverse hyperbolic tangent of the specified value.

Syntax: atanh(x)

Parameters:

• x: Specified values.

Returns: It returns the calculated inverse hyperbolic tangent of the specified value.

Example:

 `# Julia program to illustrate ``# the use of atanh() method`` ` `# Getting inverse hyperbolic tangent of the``# specified values.``println(atanh(``0``))``println(atanh(``-``0.45``))``println(atanh(``0.5``))``println(atanh(``-``0.896``))`

Output:

```0.0
-0.48470027859405174
0.5493061443340548
-1.4515553918367974```

The `atand()` is an inbuilt function in julia which is used to calculate inverse tangent of the specified value and output is in degrees.

Syntax: atand(x)

Parameters:

• x: Specified values.

Returns: It returns the calculated inverse tangent of the specified value and output is in degrees.

Example:

 `# Julia program to illustrate ``# the use of atand() method`` ` `# Getting inverse tangent of the specified``# values and output is in degrees.``println(atand(``0``))``println(atand(``-``0.444``))``println(atand(``0.7774``))``println(atand(``1``))`

Output:

```0.0
-23.941221054429125
37.861494636796294
45.0```

My Personal Notes arrow_drop_up