JavaScript Math cosh() Method

Last Updated : 23 Jul, 2021

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

Example:

Javascript

<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>

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.

Javascript

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

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.

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.
  document.write(Math.cosh("geeksforgeeks") + "<br>");
  document.write(Math.cosh("gfg"));                   
</script>

Output:

NaN
NaN

Program 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.

Javascript

<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>

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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