exp

(PHP 4, PHP 5, PHP 7)

exp — 锟斤拷锟斤拷 e 锟斤拷指锟斤拷

exp ( float $arg ) : float

锟斤拷锟斤拷 e 锟斤拷 arg 锟轿凤拷值锟斤拷

Note:
锟斤拷 'e' 锟斤拷为锟斤拷然锟斤拷锟斤拷锟侥碉拷 2.718282.

'e' raised to the power of arg

Example #1 exp() 锟斤拷锟斤拷


<?php
echo exp(12) . "\n";
echo exp(5.7);
?>

锟斤拷锟斤拷锟斤拷锟教伙拷锟斤拷锟斤拷锟�

1.6275E+005
298.87