JavaScript Math asinh()

// hyperbolic arcsine of 5
let number = Math.asinh(5);
console.log(number); 

// Output: 2.3124383412727525

asinh() syntax

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

Math.asinh(number)

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

asinh() Parameter

The asinh() method takes a single parameter:

• number - whose hyperbolic arcsine is to be calculated

asinh() Return Value

The asinh() method returns:

• hyperbolic arcsine of the given argument number
• NaN (Not a Number) for a non-numeric argument

Example 1: JavaScript Math.asinh()

// hyperbolic arcsine of a negative number
let number2 = Math.asinh(-5);
console.log(number2);  

// hyperbolic arcsine of zero
let number1 = Math.asinh(0);
console.log(number1);

// hyperbolic arcsine of a positive number
let number3 = Math.asinh(32);
console.log(number3); 

// Output:
// -2.3124383412727525
// 0
// 4.15912713462618

In the above example, the Math.asinh() computes the hyperbolic arcsine of

• -5 (negative number) - results in -2.3124383412727525
• 0 (zero) - results in 0
• 32 (positive number) - results in 4.15912713462618

Example 2: Math.asinh() with Infinity

// asinh() with positive infinity
let number1 = Math.asinh(Infinity);
console.log(number1);
// Output: Infinity

// asinh() with negative infinity
let number2 = Math.asinh(-Infinity);
console.log(number2);   
// Output: -Infinity

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

let string ="Harry";

// asinh() with a string argument
let value = Math.asinh(string);
console.log(value);

 // Output: NaN

In the above example, we have tried to calculate the hyperbolic arcsine value of the string "Harry". That's why we get NaN as the output.

Recommended readings:

• JavaScript Math asin()
• JavaScript Math sinh()
• JavaScript Math acosh()