©TCP-tryPHP

<!DOCTYPE html>
<html lang="ko">

<head>
	<meta charset="UTF-8">
	<title>PHP Built In Function</title>
</head>

<body>

<?php
	echo "sin3.14는 ".sin(pi()/2)."입니다.<br>";
	echo "cos3.14는 ".cos(M_PI)."입니다.<br>";
	echo "tan3.14는 ".tan(M_PI/4)."입니다.";
?>

</body>

</html>

​x
 
<!DOCTYPE html>
<html lang="ko">
​
<head>
    <meta charset="UTF-8">
    <title>PHP Built In Function</title>
</head>
​
<body>
​
<?php
    echo "sin3.14는 ".sin(pi()/2)."입니다.<br>";
    echo "cos3.14는 ".cos(M_PI)."입니다.<br>";
    echo "tan3.14는 ".tan(M_PI/4)."입니다.";
?>
​
</body>
​
</html>