tan() function in PHP

Thetan()The function returns the tangent of the specified value.

Syntax

tan(val)

parameter

• val-radian value

returns

Thetan()The function returns the tangent of the specified value val.

Example

<?php
　　　echo(tan(0)  .  "<br>");
　　　echo(tan(1)  .  "<br>");
?>

Output Result

0<br>1.5574077246549<br>

Example

Let's look at another example-

<?php
　　　echo(tan(M_PI_4));
?>

Output Result

1

Example

Let's look at another example-

<?php
　　　echo(tan(0.50)  .  "<br>");
　　　echo(tan(-0.50));
?>

Output Result

0.54630248984379<br>-0.54630248984379

Example

Let's look at another example-

<?php
　　　echo(tan(-5)  .  "<br>");
　　　echo(tan(-10));
?>

Output Result

3.3805150062466<br>-0.64836082745909