Easy Tutorial
❮ Func Date Timezone Name From Abbr Filter Callback ❯

PHP expm1() Function

PHP Math Reference Manual

Example

Returns exp() - 1:


Definition and Usage

The expm1() function returns exp(x) - 1.


Syntax

Parameter Description
x Required. Specifies the exponent.

Technical Details

Return Value: 'e' raised to the power of x minus 1.
Return Type: Float
--- ---
PHP Version: 4.1+
--- ---
PHP Changelog: PHP 5.3: The expm1() function is available on all platforms.
--- ---
❮ Func Date Timezone Name From Abbr Filter Callback ❯