JavaScript Math.acosh() Method

1. Syntax of JavaScript Math.acosh():
2. Example Code: Use the Math.acosh() Method to Get the Hyperbolic Arc-Cosine of Various Numbers
3. Example Code: Use the Math.acosh() Method With Values Less Than 1

We can use the Math.acosh() method to get the hyperbolic arc-cosine of a number in JavaScript.

The Math.acosh(number) method represents the arcosh(number). The straightforward formula to calculate the inverse hyperbolic cosine of the number is ln(number + (number²-1)^(-1/2)).

Syntax of JavaScript Math.acosh():

let number = 2;
Math.acosh(number);

Parameters

Return

It returns the inverse hyperbolic cosine of the number parameter value.

Example Code: Use the Math.acosh() Method to Get the Hyperbolic Arc-Cosine of Various Numbers

In the example below, we have used different positive numbers to get their inverse hyperbolic cosine value using the Math.acosh() method.

let number1 = 30;
let number2 = 6.5;
console.log(Math.acosh(number1));
console.log(Math.acosh(number2));

Output:

4.0940666686320855
2.5589789770286124

Example Code: Use the Math.acosh() Method With Values Less Than 1

When we take a number value below less than 1, the Math.cosh(number) method always returns the NaN value, which means Not a Number that users can see in the output.

let number1 = 1;
let number2 = 0.5;
console.log(Math.acosh(number1));
console.log(Math.acosh(number2));

Output:

0
NaN

Developers can use the Math.acosh() method with all modern browsers to get the hyperbolic arc-cosine value.