The **Math.exp()** function in JavaScript is used to return e^{x}, where x is the argument, and e is Euler’s number, which is the base of the natural logarithms.

exp() is a static method of Math, therefore, it is always used as Math.exp(), rather than as a method of a Math object created.

**Syntax:**

Math.exp(value)

**Parameters Used:**

** Value:**A number whose e^{x} you want to find.

**Return Value:**

The Math.exp() function returns e^{x} where e is Euler’s number and x is the argument.

**Examples:**

**When zero is passed as a parameter.**`<`

`script`

`type`

`=`

`"text/javascript"`

`>`

`document.write("Output : " + Math.exp(0));`

`</`

`script`

`>`

**Output:**Output : 1

**When “-1” is passed as a parameter.**`<`

`script`

`type`

`=`

`"text/javascript"`

`>`

`document.write("Output : " + Math.exp(-1));`

`</`

`script`

`>`

**Output:**Output : 0.36787944117144233

**When “1” is passed as a parameter.**`<`

`script`

`type`

`=`

`"text/javascript"`

`>`

`document.write("Output : " + Math.exp(1));`

`</`

`script`

`>`

**Output:**Output : 2.718281828459045

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