TAN(X);
<?Php echo TAN(PI()); // Output is 0 echo "<br>"; echo TAN(PI()/2); // Output is infinity echo "<br>"; echo ROUND(TAN(PI()/3),2); // Output is 1.73 echo "<br>"; echo TAN(PI()/4); // Output is 1 ?>
<?Php echo TAN(deg2rad(0)); // Output is 0 echo "<br>"; echo TAN(deg2rad(90)); // Output is 1.6331239353195E+16 // same as infinity echo "<br>"; echo TAN(deg2rad(180)); // Output is -1.2246467991474E-16// same as 0 ?>
Plotting of SIN & SIN curves by using PHP GD function with deg2rad()
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