JavaScript(JS) math method - acosh

The JavaScript acosh() method is a built-in Math function that returns the hyperbolic arc-cosine of a number. The hyperbolic arc-cosine is the inverse function of the hyperbolic cosine function, and it returns the angle whose hyperbolic cosine is a given number.

The acosh() method takes a single argument, which is the number whose hyperbolic arc-cosine you want to find. The argument must be a number greater than or equal to 1, otherwise, the method will return NaN (Not a Number).

Here is an example of using the acosh() method:

const x = 2;
const y = Math.acosh(x);
console.log(y); // Output: 1.3169578969248166

In this example, the acosh() method is used to find the hyperbolic arc-cosine of the number 2, which is approximately 1.3169578969248166.