Tutorialspoint.dev

JavaScript | Math.E() function

Math.E() is an inbuilt function in JavaScript which is used to get the value of ep, 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 ep, 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 ep
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 ep
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


This article is attributed to GeeksforGeeks.org

leave a comment

code

0 Comments

load comments

Subscribe to Our Newsletter