JavaScript Math.exp()
Syntax & Examples
Math.exp() static-method
The Math.exp() method in JavaScript returns e raised to the power of a given number (x), where e is Euler's number (approximately 2.718), the base of the natural logarithm. It is a static method of Math, meaning it is always used as Math.exp() and not as a method of a Math object created (Math is not a constructor).
Syntax of Math.exp()
The syntax of Math.exp() static-method is:
Math.exp(x)This exp() static-method of Math returns e^x, where x is the argument, and e is Euler's number (2.718…, the base of the natural logarithm).
Parameters
| Parameter | Optional/Required | Description |
|---|---|---|
x | required | A number representing the exponent to raise e to. |
Return Type
Math.exp() returns value of type Number.
✐ Examples
1 Using Math.exp() with a positive number
In this example, we use the Math.exp() method to calculate e raised to the power of 1.
For example,
- We call
Math.exp()with 1 as the argument. - The method returns e raised to the power of 1.
- We log the result to the console using
console.log().
JavaScript Program
console.log(Math.exp(1));Output
2.718281828459045
2 Using Math.exp() with zero
In this example, we use the Math.exp() method to calculate e raised to the power of 0.
For example,
- We call
Math.exp()with 0 as the argument. - The method returns e raised to the power of 0.
- We log the result to the console using
console.log().
JavaScript Program
console.log(Math.exp(0));Output
1
3 Using Math.exp() with a negative number
In this example, we use the Math.exp() method to calculate e raised to the power of -1.
For example,
- We call
Math.exp()with -1 as the argument. - The method returns e raised to the power of -1.
- We log the result to the console using
console.log().
JavaScript Program
console.log(Math.exp(-1));Output
0.36787944117144233
Summary
In this JavaScript tutorial, we learned about exp() static-method of Math: the syntax and few working examples with output and detailed explanation for each example.