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PHP Manual [exp]

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PHP Manual || Math Functions

(PHP 4, PHP 5, PHP 7)

expCalculates the exponent of e

Description

exp ( float $arg ) : float

Returns e raised to the power of arg.

Note:

'e' is the base of the natural system of logarithms, or approximately 2.718282.

Parameters

arg

The argument to process

Return Values

'e' raised to the power of arg

Examples

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() - Natural logarithm
  • pow() - Exponential expression



PHP Manual || Math Functions