Math.acosh( ) In JavaScript

The Math.acosh() function in Javascript is used to return the hyperbolic arc-cosine of a number.
Math.acosh (x) = arcosh(x) = y ≧ 0 such that cosh (y)=x
acosh() is a static method of Math, therefore it is always used as Math.acosh(), rather than as a method of a Math object created.

Syntax:

Math.acosh(value)

Parameters: This function accepts single parameter value which is the number whose hyperbolic arc-cosine you want to know.

Returns: It returns the hyperbolic arc-cosine of the given number and if the parameter passed is less than 1, it returns NaN.

Examples:

Input  : Math.acosh(1)
Output : 0

Input  : Math.acosh(0)
Output : NaN

Input  : Math.acosh(-1)
Output : NaN

Input  : Math.acosh(2)
Output : 1.3169578969248166

• Example 1: When 1 is passed as a parameter.
  
  

  
  
  

  <script type="text/javascript">    document.write("Output : " + Math.acosh(1)); </script>

  Output:

  Output : 0

• Example 2: When 0 is passed as a parameter.
  
  

  
  
  

  <script type="text/javascript">    document.write("Output : " + Math.acosh(0)); </script>

  Output:

  Output : NaN

• Example 3: When a number less than 0 is passed as a parameter.
  
  

  
  
  

  <script type="text/javascript">    document.write("Output : " + Math.acosh(-1)); </script>

  Output:

  Output : NaN

• Example 4: When 2 is passed as a parameter.
  
  

  
  
  

  <script type="text/javascript">    document.write("Output : " + Math.acosh(2)); </script>

  Output:

  Output : 1.3169578969248166

  Supported Browsers: The browsers supported by JavaScript Math.acosh( ) function are listed below:

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