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JavaScript Math atanh( ) Method

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  • Last Updated : 19 Oct, 2022
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The Math.atanh() method is used to return the hyperbolic arctangent of a number. The atanh() is a static method of Math, therefore it is always used as Math.atanh(), rather than as a method of a Math object created.

Math.atanh (x) = arctanh(x) = y such that tanh (y) = x

Syntax: 

Math.atanh(value)

Parameters: This method accepts a single parameter as mentioned above and described below: 

  • value: This parameter holds the number whose hyperbolic arc-tangent you want to know.

Returns: It returns the hyperbolic arc-tangent of the given number.

Below is an example of the Math atanh() Method. 

Example:  

Javascript




<script type="text/javascript">
      console.log("When 1 is passed as a parameter: "
                     + Math.atanh(1));
</script>

Output: 

When 1 is passed as a parameter: Infinity

Example 1: 

Input : Math.atanh(1)
Output : Infinity

Example 2: 

Input : Math.atanh(0)
Output : 0

Example 3: 

Input : Math.atanh(2)
Output : NaN

Example 4: 

Input : Math.atanh(0.5)
Output : 0.5493061443340548

More example codes for the above method are as follows:

Program 1:

Javascript




<script type="text/javascript">
      console.log("When 0 is passed as a parameter: "
       + Math.atanh(0));
</script>

Output: 

When 0 is passed as a parameter: 0

Program 2: 

Javascript




<script type="text/javascript">
       console.log("When 2 is passed as a parameter: "
        + Math.atanh(2));
</script>

Output: 

When 2 is passed as a parameter: NaN

Program 3: 

Javascript




<script type="text/javascript">
        console.log("When 0.5 is passed as a parameter: "
        + Math.atanh(0.5));
</script>

Output: 

When 0.5 is passed as a parameter: 0.5493061443340548

Supported Browsers: 

  • Google Chrome 38.0
  • Internet Explorer 12.0
  • Firefox 25.0
  • Opera 25.0
  • Safari 8.0

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