Php tan
From w3cyberlearnings
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PHP function tan
This function returns the tangent of X, and X is a given radians.
Syntax tan
X is in radians.
tan(X)
Example 1
<?php echo tan(M_PI_4); echo "<br/>"; echo tan(M_PI_2); echo "<br/>"; echo tan(pi()); ?>
Output
1 1.6331239353195E+16 -1.2246467991474E-16
