JavaScript Math.acosh() Method

Math.acosh()The method returns the hyperbolic cosine of a number.

If the value of the passed parameter is less than1, then this method will return NaN.

Because acosh() is a static method of Math, you always use it asMath.acosh(), not as a method of the created Math object.

Syntax:

Math.acosh(x)

Example

Math.acosh(3);

All browsers fully support the Math.acosh() method:

Method
Math.acosh()	is	is	is	is	is

Parameter	Description
x	Value

Return Value:	a number if the parameter is less than1, then it isNaN
JavaScript Version:	ECMAScript 1

For less than1The value, Math.acosh() returns NaN:

Example

Math.acosh(-1);//　NaN
Math.acosh(0);　//　NaN
Math.acosh(0.5);　　　//　NaN
Math.acosh(1);　//　0
Math.acosh(2);　//　1.3169578969248166