JavaScript Math.exp()

In this tutorial, you will learn about the JavaScript Math.exp() method with the help of examples.

The `Math.exp()` method returns e (Euler's constant) raised to the given power. It is equivalent to ex in mathematics.

Example

``````// calculate e (Euler's constant) power to 2
var value = Math.exp(2);

console.log(value);

//Output: 7.38905609893065  ``````

exp() Syntax

The syntax of the `exp()` method is:

``Math.exp(x)``

Here, `exp()` is a static method. Hence, we need to access the method using the class name, `Math`.

exp() Parameters

The `exp()` method takes in:

• x - a number

exp() Return Value

The `exp()` method returns:

• ex for argument x, where e is Euler's constant (2.71828).
• `NaN` for non-numeric arguments.

Example 1: JavaScript Math.exp()

``````// calculate e raised to the power of 1
var value1 = Math.exp(1);

console.log(value1);

// calculate e raised to the power of 2
var value2 = Math.exp(2);

console.log(value2);

// calculate e raised to the power of 5
var value3 = Math.exp(5);

console.log(value3); ``````

Output

```2.718281828459045
7.38905609893065
148.4131591025766```

In the above example,

• `Math.exp(1)` - computes e (Euler's constant) raised to the power of 1 i.e. `e1`
• `Math.exp(2)` - computes e (Euler's constant) raised to the power of 2 i.e. `e2`
• `Math.exp(5)` - computes e (Euler's constant) raised to the power of 5 i.e. `e5`

Example 2: exp() With 0

``````// calculate e raised to the power of 0
var value = Math.exp(0);

console.log(value);

// Output: 1``````

In the above example, we have used the `exp()` method to compute e (Euler's constant) raised to the power of 0 i.e. `e0`.

The output `1` indicates that e raised to the power 0 is 1 i.e. `e0 = 1`.

Example 3: exp() With Negative Numbers

``````// calculate e raised to -1
var value = Math.exp(-1);

console.log(value);

// Output: 0.36787944117144233``````

In the above example, we have used the `exp()` method to compute e (Euler's constant) raised to the power of -1 i.e. `e-1`.

The output indicates that `e-1` is a positive number 0.36787944117144233.