PHP Velho Oeste 2024

tan

(PHP 4, PHP 5, PHP 7, PHP 8)

tanTangent

Description

tan(float $num): float

tan() returns the tangent of the num parameter. The num parameter is in radians.

Parameters

num

The argument to process in radians

Return Values

The tangent of num

Examples

Example #1 tan() example

<?php

echo tan(M_PI_4); // 1

?>

See Also

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User Contributed Notes 2 notes

up
-2
farba36 at yahoo dot com
9 years ago
Kotanjant için başka bir çözüm
<?php
$degrees
= 30;
echo
"$degrees derecelik açının kotanjant değeri: " . 1/tan(deg2rad($degrees));
?>
up
-9
georgedot at gmail dot com
14 years ago
Workaround for cotangent function

<?php
//FOR PHP 4
function cot($rad)
{
    return
tan(M_PI_2 - rad2deg($rad));
}

//FOR PHP 3
function cot($rad)
{
    return
tan(M_PI/2 - rad2deg($rad));
}
?>
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