JavaScript Math.sinh() method

Quiz

The Math.sinh() method in JavaScript allows a numeric value as an argument and returns the hyperbolic sine of that number. If we provide Infinity and -Infinity as argument, this method returns Infinity and -Infinity, respectively. If a non-numeric or empty number is provided, it NaN as result.

Mathematically, the hyperbolic sine function is defined as follows −

sinh(x) = (e^x - e^(-x)) / 2

Where x is the number for which the hyperbolic sine is to be calculated, and e represents Euler's number, the base of the natural logarithm.

Syntax

Following is the syntax of JavaScript Math.sinh() method −

Math.sinh(x)

Parameters

This method accepts only one paramter. The same is described below −

x: A numeric value.

Return value

This method returns the hyperbolic sine of the provided number.

Example 1

In the below example, we are using the JavaScript Math.sinh() method to calculate the hyperbolic sine of the provided number −

<html>
<body>
<script>
   let number1 = Math.sinh(-1);
   document.write(number1, "<br>");

   let number2 = Math.sinh(0);
   document.write(number2, "<br>");

   let number3 = Math.sinh(1);
   document.write(number3);
</script>
</body>
</html>

Output

As we can see in the output, it returned the hyperbolic sine of the provided numbers.

Example 2

In this example below, we are using the Math.tanh() method with Infinity values −

<html>
<body>
<script>
   let number1 = Math.sinh(Infinity);
   document.write(number1, "<br>");

   let number2 = Math.sinh(-Infinity);
   document.write(number2);
</script>
</body>
</html>

Output

If we execute the above program, it returns Infinity and -Infinity as result, respectively.

Example 3

Here, we are trying to calculate the hyperbolic tangent value of a non-numeric value or empty number −

<html>
<body>
<script>
   let number1 = Math.sinh("Tutorialspoint");
   document.write(number1, "<br>");

   let number2 = Math.sinh();
   document.write(number2);
</script>
</body>
</html>

Output

If we execute the above program, it returns NaN as result.

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