PHP exp() Function
Example
Return 'E' raised to the power of different numbers:
<?php
echo(exp(0) . "<br>");
echo(exp(1) . "<br>");
echo(exp(10) . "<br>");
echo(exp(4.8));
?>
Try it Yourself »
Definition and Usage
The exp() function returns E raised to the power of x (Ex).
'E' is the base of the natural system of logarithms (approximately 2.718282) and x is the number passed to it.
Syntax
exp(x);
Parameter Values
| Parameter | Description |
|---|---|
| x | Required. Specifies the exponent |
Technical Details
| Return Value: | 'E' raised to the power of x |
|---|---|
| Return Type: | Float |
| PHP Version: | 4+ |
❮ PHP Math Reference
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