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:

• Here the parameter p is a number for which the value of hyperbolic cosine is going to be calculated.

Return value:

• 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.

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:

Output:

> 1
> 1.5430806348152437
> 1
> 1792456423.065796
> 3.7621956910836314
> 27.308232836016487

Errors and Exceptions:

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

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   Output:

   Error: Invalid or unexpected token

2. 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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   // 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. console.log(Math.cosh("geeksforgeeks")); console.log(Math.cosh("gfg"));

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

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  Output:

  > 1
  > 1.5430806348152437
  > 3.7621956910836314
  > 10.067661995777765
  > 27.308232836016487
  > 74.20994852478785
  > 201.7156361224559
  > 548.317035155212
  > 1490.479161252178
  > 4051.5420254925943

Kanchan_Ray

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