- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
cos() function in PHP
The cos() function Returns the cosine of a number. A numeric value between -1 and 1 is Returned representing the cosine of the angle.
Syntax
cos(num)
Parameters
num − The specified value in radians
Return
The cos() function Returns cosine of a number in float. A numeric value between -1 and 1 is Returned representing the cosine of the angle.
Example
<?php echo(cos(1) . "<br>"); echo(cos(-1)); ?>
Output
0.54030230586814<br>0.54030230586814
Example
Let us see another example −
<?php echo(cos(0)); ?>
Output
1
Advertisements