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:

1.6275E+005
298.87

See also log() and pow().


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