exp
(PHP 3, PHP 4, PHP 5)
exp -- Calculates the exponent of
e (the Neperian or Natural logarithm base)
Description
float
exp ( float arg )
Returns e raised to the power of arg.
Note: 'e' is the base of the natural system of logarithms, or approximately 2.718282.
Example 1. exp() example <?php
echo exp(12) . "\n";
echo exp(5.7);
?> |
The above example will output: |
See also log() and pow().