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)

Parameter:

  • 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:

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// 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));

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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:













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// Here alphabet parameter give error. 


console.log(Math.exp(a)); 



















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Output:


Error: a is not defined


Code #2:













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// Here parameter as a string give NaN. 


console.log(Math.exp("gfg")); 



















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Output:


> NaN



          
          
          
          

            

    

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