JavaScript Math exp() Method

JavaScript Math.exp() is used to get the value of e^p, where p is any given number. The number e is a mathematical constant having an approximate value equal to 2.718. It was discovered by the Swiss mathematician Jacob Bernoulli. 2.718 is also called Euler’s number.

Syntax:

Math.exp(p)

Parameter: This method accepts a single parameter 

• p: It can be any number.

Return Value: It returns the value of e^p, where p is any given number as a parameter. 

Example:

Input  : Math.exp(0)
Output : 1

Explanation: Here the value of parameter p is 0, So after putting the value 0 instead of p in e^p then its value becomes 1.  

Input  : Math.exp(2)
Output : 7.38905609893065

Explanation: Here the value of parameter p is 2, So after putting the value 2 instead of p in e^p then its value becomes 7.38905609893065.

Below example illustrate the JavaScript Math exp() Method:

Example 1:

Javascript

// Here different values is being taken as
// as parameter of Math.exp() function.
console.log(Math.exp(0));
console.log(Math.exp(1));
console.log(Math.exp(2));
console.log(Math.exp(-1));
console.log(Math.exp(-7));
console.log(Math.exp(10));
console.log(Math.exp(1.2));

Output

1
2.718281828459045
7.38905609893065
0.36787944117144233
0.0009118819655545162
22026.465794806718
3.3201169227365472

Example 2: Here parameter should be a number otherwise it gives an error or NaN i.e, not a number.

Javascript

<script>
// Here alphabet parameter give error.
 console.log(Math.exp(a));
</script>

Output:

Error: a is not defined

Javascript

// Here parameter as a string give NaN.
console.log(Math.exp("gfg"));

Output

NaN

Example -3 : If we don’t pass any parameter to the method then it will also return NaN.

Javascript

// Without passing any parameter
console.log(Math.exp());

Output

NaN

Supported Browsers: The browsers supported by JavaScript Math.E() function are listed below:  

• Google Chrome 1 and above
• Internet Explorer 3 and above
• Edge 12 and above
• Firefox 1 and above
• Opera 3 and above
• Safari 1 and above

We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.