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Version: 3.27.2

Math.atanh()

The Math.atanh() function returns the inverse hyperbolic tangent of a number.

Syntax​

Math.atanh(x)

Parameters​

  • x
    • : A number between -1 and 1, inclusive.

Return value​

The inverse hyperbolic tangent of x. If x is 1, returns Infinity. If x is -1, returns -Infinity. If x is less than -1 or greater than 1, returns NaN.

Description​

Because atanh() is a static method of Math, you always use it as Math.atanh(), rather than as a method of a Math object you created (Math is not a constructor).