JavaScript Math acosh()

acosh() syntax

The syntax of the Math.acosh() method is:

Math.acosh(number)

Here, acosh() is a static method. Hence, we are accessing the method using the class name, Math.

acosh() Parameter

The acosh() method takes a single parameter:

• number - a positive value whose hyperbolic arc-cosine is to be calculated

acosh() Return Value

The acosh() method returns:

• hyperbolic arc-cosine of the given positive argument number
• NaN (Not a Number) for zero, negative and non-numeric argument

Example 1: JavaScript Math.acosh() with Positive Numbers

In the above example, we have used the Math.acosh() method with

• 32 (integer value) - results in 4.158638853279167
• 4.5 (floating-point value) - result in 2.1846437916051085

Example 2: Math.acosh() with Zero and Negative Numbers

In the above example, we have used the acosh() method with a negative number and zero. For both values, we get NaN as output.

Note: We can only use the acosh() method with positive numbers.

Example 3: Math.acosh() with Non-Numeric argument

In the above example, we have used the acosh() method with the string "Harry". Hence, we get NaN as output.

Recommended readings:

• JavaScript Math cosh()
• JavaScript Math asinh()
• JavaScript Math atanh()