Hi
cos()
The cos() returns the cosine of a number.
PHP Code:
<?php
echo(cos(3) . "<br />");
echo(cos(-3) . "<br />");
echo(cos(0) . "<br />");
echo(cos(M_PI) . "<br />");
echo(cos(2*M_PI))
?>
OutPut will be
Code:
-0.9899924966004454
-0.9899924966004454
1
-1
1
Regards
Falcon
