JavaScript Math cosh() Method

Last Updated : 08 Jul, 2020

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

Example:

<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.

<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.

<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

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:

<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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