JavaScript Math pow( ) Method

Below is the example of the Math pow() Method.

• Example:

  <script type="text/javascript">
      document.write(Math.pow(3, 4));
  </script>
• Output:

  81

The Math.pow() method 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: This method accepts two parameters as mentioned above and described below:

• 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() method returns a number representing the given base raised to the power of the given exponent.

More codes for the above method are as follows:

Program 1: 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

Program 2: When the base value is negative and the exponent is positive:

<script type="text/javascript">
    document.write(Math.pow(-9, 3));
</script>

Output:

-729

Program 3: 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

Program 4: 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

Supported Browsers:

• Google Chrome 1 and above
• Internet Explorer 3 and above
• Firefox 1 and above
• Opera 3 and above
• Safari 1 and above