PHP cos() Function
 Complete PHP Math Reference
Definition and Usage
The cos() function returns the cosine of a number.
Syntax
| Parameter |
Description |
| x |
Required. A number |
Tips and Notes
Note: The cos()
function returns a numeric value between -1 and 1, which represents the cosine of
the angle.
Example
In the following example we will return the cosine of different numbers:
<?php
echo(cos(3) . "<br />");
echo(cos(-3) . "<br />");
echo(cos(0) . "<br />");
echo(cos(M_PI) . "<br />");
echo(cos(2*M_PI))
?>
|
The output of the code above will be:
-0.9899924966004454
-0.9899924966004454
1
-1
1
|
Complete PHP Math Reference
Stylus Studio® 2010 XML Enterprise Suite raises the bar for productivity in XML development tools.
Millions of XML developers and data integration specialists turn to Stylus Studio's comprehensive and intuitive
XML toolset to tackle today's advanced XML data transformation and aggregation challenges.
|
- XML Pipeline Editor, Debugger and Code Generator
- DataDirect XML Converters
- XQuery Mapper, Editor, Debugger, and Profiler
- XSLT Mapper, Editor, Debugger, Designer, and Profiler
- Java and C# for .Net Code Generation
- XML Schema Designer With Documentation Generator
- XML Editor With Full XPath Integration
Download a free trial now
|
|
