Skip to main content
Version: 3.35.1

Math.acosh()

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

Syntax​

Math.acosh(x)

Parameters​

  • x
    • : A number greater than or equal to 1.

Return value​

The inverse hyperbolic cosine of x. If x is less than 1, returns NaN.

Description​

Because acosh() is a static method of Math, you always use it as Math.acosh(), rather than as a method of a Math object you created (Math is no constructor).