PHP. Учебник. 2005

exp

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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. 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); ?>

Результат выполнения данного примера:

1.6275E+005
298.87

- See also log() and pow().

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