JavaScript | Math.E() function - Tutorialspoint.dev

Math.E() is an inbuilt function in JavaScript which 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.
This number is also called Euler’s number.

Syntax:

Math.exp(p)

Paramter:

Here p is the parameter and it is any number.

Return Value:

It return the value of e^p, where p is any given number as 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.

Let’s see JavaScript program:

// 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

Error Or Exceptions associated:
Here parameter should must be a number otherwise it give error or NaN i.e, not a number.
Code #1:

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

Output:

Error: a is not defined

Code #2:

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

Output:

> NaN

JavaScript | Math.E() function

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