PHP tan() Function

The tan() function is trigonometry math function of PHP, which is used to calculate trigonometry problems. It returns the tangent of a number.

Syntax:

Parameter	Description	Required/Optional
number	Specify a value in radian	required

Example 1

 <?php
$num=M_PI_4;
echo "Your number is M_PI_4 = ".$num;
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Your number is M_PI_4 = 0.78539816339745
By using 'tan()' function your number is :1

Example 2

<?php
$num=(0.50);
echo "Your number is = ".$num;
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Your number is = 0.5
By using 'tan()' function your number is :0.54630248984379

Example 3

<?php
$num=(-0.50);
echo "Your number is = ".$num;
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Your number is = -0.5
By using 'tan()' function your number is :-0.54630248984379

Example 4

<?php
$num=(5);
echo "Your number is = ".$num;
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Passing number is = 5
By using 'tan()' function your number is :-3.3805150062466

Example 5

<?php
$num=(10);
echo "Passing number is = ".$num;
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Passing number is = 10
By using 'tan()' function your number is :0.64836082745909

Example 6

<?php
$num=(-5);
echo "Passing number is = ".$num;
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Passing number is = -5
By using 'tan()' function your number is :3.3805150062466

Example 7

<?php
$num=(0.50);
echo "Passing number is (0.50)";
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Passing number is :0.5
By using 'tan()' function your number is :0.54630248984379

Example 8

<?php
$num=(3*pi()/2);
echo "Passing number is : 3*pi()/2";
echo "<br>"."By using 'tan()' function your number is :".(tan($num));
?>

Output:

Passing number is : 3*pi()/2
By using 'tan()' function your number is :5.4437464510651E+15

Next TopicPHP Math

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PHP tan() Function

Syntax:

Example 1

Example 2

Example 3

Example 4

Example 5

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