JavaScript Math.exp() 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. 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 ep, 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 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.
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)); |
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")); |
NaN
Example -3 : If we don’t pass any parameter to the method then it will also return NaN.
Javascript
// Without passing any parameterconsole.log(Math.exp()); |
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.
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