Exponential¶
The exponential is a mathematical function. It satisfies the expression : exp($a + $a) = exp($a) * exp($b), and exp(0) === 1.
<?php
$e = exp(1); // also known as M_E
?>
Added in PHP 8.1
The exponential is a mathematical function. It satisfies the expression : exp($a + $a) = exp($a) * exp($b), and exp(0) === 1.
<?php
$e = exp(1); // also known as M_E
?>
Added in PHP 8.1
Contents: