JavaScript Math atanh( ) Method

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

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

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• Output:

  When 1 is passed as a parameter: Infinity

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 examples illustrate the Math atanh( ) method in JavaScript

• 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:

Pogram 1:

Output:

When 0 is passed as a parameter: 0

Program 2:

Output:

When 2 is passed as a parameter: NaN

Program 3:

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

Shubrodeep Banerjee

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