PHP exp() Function Example

The exp() function used to calculate the value of Ex, where E is Euler's constant.

PHP exp() Function Example:

The exp() function used to calculate the value of E^x, where E is Euler's constant and value of the Euler's constant is approximately 2.7183 and x is the number that you passed.

Syntax:

exp(x)

where x is a number.

Example:

<?php
$return = exp(2);
echo "The value of exp(2) is : " . $return . "<br/>";

$return_value = exp(-5);
echo "The value of exp(-5) is : " . $return_value;
?>

After running the output is:

Output:

The value of exp(2) is : 7.3890560989307
The value of exp(-5) is : 0.0067379469990855

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