Categories
JavaScript Web development

JavaScript exp() and expm1() Methods

JavaScript exp() and expm1() Methods

The JavaScript Math.exp() returns the value of Ex, where E is Euler’s number (approx. 2.7183) and x is the number passed to it.

Syntax:

Math.exp(x)

Example:

<!DOCTYPE html>
<html>
<body>

<button onclick="expFunction()">Try it</button>

<p id="example"></p>

<script>
function expFunction() {
  document.getElementById("example").innerHTML = Math.exp(2);
}
</script>

</body>
</html>

Output:

Click the button to display the result of Math.exp(2):


The JavaScript Math.expm1() returns the value of Ex minus 1, where E is Euler’s number (approx. 2.7183) and x is the number passed to it.

Note: The JavaScript Math.expm1() is more precise than, Math.exp() and subtracting 1.

Syntax:

Math.expm1(x)

Example:

<!DOCTYPE html>
<html>
<body>

<button onclick="expm1Function()">Try it</button>
<p id="example1"></p>

<script>
function expm1Function() {
  document.getElementById("example1").innerHTML = Math.expm1(2);
}
</script>

</body>
</html>

Output:

Click the button to display the result of Math.expm1(2).


Enjoy coding!

Read also:

JavaScript Math Object

JavaScript Math Object Properties

JavaScript Math.ceil()