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JavaScript Math cosh() Method

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  • Last Updated : 02 Jan, 2023
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The Math.cosh() method is used to calculate the value of the hyperbolic cosine of a number.

Syntax:

Math.cosh(x)

   Parameter: This method accepts a 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

Example: Here formula for calculating the 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: In the same way, the 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

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

Example: This example shows the hyperbolic cosine of the numbers passed as a parameter.

Javascript




<script>
    // Printing hyperbolic cosine of some numbers
    // taken as parameter of Math.cosh() method.
    console.log(Math.cosh(0));
    console.log(Math.cosh(1));
    console.log(Math.cosh(0));
    console.log(Math.cosh(22));
    console.log(Math.cosh(-2));
    console.log(Math.cosh(4));
</script>


Output:

 1
 1.5430806348152437
 1
 1792456423.065796
 3.7621956910836314
 27.308232836016487

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

Javascript




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


Output:

Error: Invalid or unexpected token

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

Javascript




<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.
    console.log(Math.cosh("geeksforgeeks") + "<br>");
    console.log(Math.cosh("gfg"));                    
</script>


Output:

NaN
NaN

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

Javascript




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


Output:

1
1.5430806348152437
3.7621956910836314
10.067661995777765
27.308232836016487
74.20994852478785
201.7156361224559
548.317035155212
1490.479161252178
4051.5420254925943

We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.

Supported Browsers:

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

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