The Math.pow() function in JavaScript is used to power of a number i.e., the value of number raised to some exponent. Since, the Math.pow() is a static method of Math and therefore it is always used as Math.pow() and not as a method of an object created of Math class.
Syntax:
Math.pow(base, exponent)
Parameters:
- base: It is the base number which is to be raised.
- exponent: It is the value used to raise the base.
Return Value: The Math.pow() function returns a number representing the given base raised to the power of the given exponent.
Below examples illustrates the Math.pow() function in JavaScript:
-
When both base and exponent are passed as positive numbers in parameters:
<
script
type
=
"text/javascript"
>
document.write(Math.pow(9, 3));
</
script
>
Output:
729
- When the base value is negative and the exponent is positive:
<
script
type
=
"text/javascript"
>
document.write(Math.pow(-9, 3));
</
script
>
Output:
-729
- When the base value is positive and the exponent is negative:
<
script
type
=
"text/javascript"
>
document.write(Math.pow(-9, 3));
</
script
>
Output:
0.0013717421124828531
- When the base value is negative and the exponent has decimal point:
<
script
type
=
"text/javascript"
>
document.write(Math.pow(-9, 0.5));
</
script
>
Output:
NaN
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