(PHP 3, PHP 4 , PHP 5)
Returns e raised to the power of arg.
Замечание: 'e' is the base of the natural system of logarithms, or approximately 2.718282.
Пример 1. exp() example
<?php echo exp ( 12 ) . "\n" ; echo exp ( 5.7 ); ?>
The above example will output:
1.6275E+005 298.87
Смотрите также log() and pow().