JavaScript | Math.cosh() function

Math.cosh() is an inbuilt function in JavaScript which is used to calculate the value of hyperbolic cosine of a number.

Syntax:

Math.cosh(p)

    Parameter: This function accepts single parameter p, which is 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.

Examples:

Input  : Math.cosh(0)

Output : 1

Explanation:
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

In the same way, hyperbolic cosine of any number can be calculated just after replacing p with the desired number.

Input  :Math.cosh(12)

Output :81377.39571257407

Explanation:
Here same as above calculation, when we put 12 instead of p then the value becomes as output shown above.

Let’s see some JavaScript code:

  • Example 1:
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    <script>
      // Printing hyperbolic cosine of some numbers
      // taken as paramter of Math.cosh() function.
      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

    

    • 

  • Example 2: Errors and Exceptions, it is an error case because complex number can not be taken as the parameter of the function 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
    

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  • Example 3: Other than integer nothing is accepted as the parameter of the function 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 function 
    

      // 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

    

    • 


    Application: Its 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() function in JavaScript.
    
Example:
    

    

    

    

    

    
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    <script> 
    

      // Printing hyperbolic cosine of some numbers from 0 to 9 
    

      // taken as paramter of Math.cosh() function. 
    

      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: The browsers supported by JavaScript Math.cosh() 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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