PHP exp() function
 Complete PHP Math Reference
Definition and Usage
The exp() function returns the value of Ex, where E is Euler's constant
(approximately 2.7183) and x is the number passed to it.
Syntax
| Parameter |
Description |
| x |
Required. A number |
Tips and Notes
Tip: E is the Euler's constant, which is the base of natural logarithms (approximately 2.7183).
Example
In the following example we will use the exp() function on different numbers:
<?php
echo(exp(1) . "<br />");
echo(exp(-1) . "<br />");
echo(exp(5) . "<br />");
echo(exp(10))
?>
|
The output of the code above will be:
2.718281828459045
0.36787944117144233
148.4131591025766
22026.465794806718
|
Complete PHP Math Reference
Learn XML with <oXygen/> XML Editor - Free Trial!
 |
|
oXygen helps you learn to define,
edit, validate and transform XML documents. Supported technologies include XML Schema,
DTD, Relax NG, XSLT, XPath, XQuery, CSS.
Understand in no time how XSLT and XQuery work by using the intuitive oXygen debugger!
Do you have any XML related questions? Get free answers from the oXygen
XML forum
and from the video
demonstrations.
Download a FREE 30-day trial today!
|
|
