JavaScript Math cosh() Method

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

  • Example:
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    <script>
      // Printing hyperbolic cosine of some numbers
      // taken as parameter of Math.cosh() method.
      document.write(Math.cosh(0) + "<br>");
      document.write(Math.cosh(1) + "<br>");
      document.write(Math.cosh(0) + "<br>");
      document.write(Math.cosh(22) + "<br>");
      document.write(Math.cosh(-2) + "<br>");
      document.write(Math.cosh(4));
    </script>

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  • Output:
     1
     1.5430806348152437
     1
     1792456423.065796
     3.7621956910836314
     27.308232836016487
    

Math.cosh() method is used to calculate the value of hyperbolic cosine of a number.

Syntax:

Math.cosh(x)

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

    • x: This parameter holds a number for which the value of hyperbolic cosine is going to be calculated.

    Returns: It returns the calculated value of hyperbolic cosine of the number.

    Below example illustrate the Mathe cosh() method in JavaScript:



    • Example 1: Here formula for calculating hyperbolic cosine of any number is : The number e is a mathematical constant having an approximate value equal to 2.718.

       \frac{e^{p} + e^{-p}}{2} = \frac{e^{0} + e^{-0}}{2}=\frac{1+1}{2}= 1

      Input : Math.cosh(0)
      Output : 1
      
    • Example 2: In the same way, hyperbolic cosine of any number can be calculated just after replacing p with the desired number. Here the same as the above calculation, when we put 12 instead of p then the value becomes as output shown above.
      Input : Math.cosh(12)
      Output : 81377.39571257407

    More codes for the above method are as follows:

    Program 1: Errors and Exceptions, it is an error case because complex number can not be taken as the parameter of the method only integer value can be taken as the parameter.

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    <script>
      // Complex number can not be calculated as the 
      // hyperbolic cosine.
      document.write(Math.cosh(1 + 2i));
    </script>

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    Output:

    Error: Invalid or unexpected token

    Program 2: Other than integer nothing is accepted as the parameter of the method that is why here-string as the parameter gives NaN i.e, not a number.

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    <script>
      // Any string value as the parameter of the method
      // gives NaN i.e, not a number
      // because only number can be used as the parameters.
      document.write(Math.cosh("geeksforgeeks") + "<br>");
      document.write(Math.cosh("gfg"));                    
    </script>

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    Output:

    NaN
    NaN
    

    Prgram 3: It’s practical application is that whenever we need to find the value of hyperbolic cosine of a number that time we take the help of Math.cosh() method in JavaScript.
    Example:

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    <script>
      // Printing hyperbolic cosine of some numbers 
      // from 0 to 9 taken as parameter
      for (i = 0; i < 10; i++) {
          document.write(Math.cosh(i) + "<br>");
      }
    </script>

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    Output:

    1
    1.5430806348152437
    3.7621956910836314
    10.067661995777765
    27.308232836016487
    74.20994852478785
    201.7156361224559
    548.317035155212
    1490.479161252178
    4051.5420254925943

Supported Browsers:

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

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