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PHP pow() Function

Syntax

pow(base, exponent);

Parameter Description
Base Number can be integer or float
Exponent Number can be integer or float

Definition

It returns the value of base raised to the power of exponent.

Usage

Pow() function is used to find multiplication of first argument itself second parameter times.

For example 52 =25. In case of pow function 5 is first argument (base) and 2 is second argument (exponent) of pow function.

.

Note: The pow function is capable of handled the negative power and exponent also.

Example of pow function

<?php

echo "10 to power 3=";

echo pow( 10, 3 );

?>
In above example, first argument (base) is 10 and second argument (exponent) is 3 so that result will be 1000.

More example of pow function

<?php

echo "10 to power -3=";

echo pow( 10, -3 );

echo "10 to power 0.5=";

echo pow( 10, 0.5);

?>

pow function easily handle the float and negative number as shown above.

In first pow function, first argument (base) is 10 and second argument (exponent) is -3 so that result will be 0.001 not 1000.

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