Created
July 10, 2019 12:57
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Tugas UAS Kuliah Metode Numerik - Rapshon
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| <?php | |
| if(isset($_POST['nilai'])){ | |
| function first($x) | |
| { | |
| $a = pow($x,3) + 2*pow($x,2) + 10*$x - 20; | |
| return $a; | |
| } | |
| function turunan_first($x){ | |
| $a = 3*pow($x,2) + 4*$x + 10; | |
| return $a; | |
| } | |
| function hasil_1($x) | |
| { | |
| $per = first($x) / turunan_first($x); | |
| $a = $x - $per; | |
| return $a; | |
| } | |
| } | |
| ?> | |
| <!DOCTYPE html> | |
| <html lang="en" dir="ltr"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Metode Numerik</title> | |
| <style media="screen"> | |
| body{ | |
| background: #fdfafa; | |
| } | |
| form{ | |
| width: 30%; | |
| height: auto; | |
| margin:auto; | |
| padding:32px; | |
| border:1px solid #f1f1f1; | |
| box-shadow: 2px 1px 8px #d9d9d9; | |
| border-radius:4px; | |
| margin-top:250px; | |
| background: #fff; | |
| } | |
| input{ | |
| padding:4px; | |
| } | |
| button{ | |
| background: #07c; | |
| color:#fff; | |
| border:2px solid #07c; | |
| padding:4px 38px; | |
| border-radius:2px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <form action="index.php" method="post"> | |
| <label for="">Masukkan Nilai : </label> | |
| <input type="text" name="nilai" value=""> | |
| <button type="submit" name="button">Cek</button> | |
| </form> | |
| <table align="center" border="1" width="800"> | |
| <tr> | |
| <th>Iterasi</th> | |
| <th>F(x)</th> | |
| <th>F'(x)</th> | |
| <th>g(x)</th> | |
| <th>Error(x)</th> | |
| </tr> | |
| <?php | |
| $flag = true; | |
| $i = 1; | |
| $x = $_POST['nilai']; | |
| $givenError = $x; | |
| while ($flag) { | |
| $root = hasil_1($x); | |
| $error = abs(($root - $x)/$root)*100; | |
| $f = first($x); | |
| $f0 = turunan_first($x); | |
| ?> | |
| <tr> | |
| <td><?= $i++ ?></td> | |
| <td><?= number_format($f,6) ?></td> | |
| <td><?= number_format($f0,6) ?></td> | |
| <td><?= number_format($root,6) ?></td> | |
| <td><?= number_format($error,6) ?></td> | |
| </tr> | |
| <?php | |
| $x = $root; | |
| if($givenError > $error){ | |
| $flag = false; | |
| } | |
| } | |
| ?> | |
| </table> | |
| </body> | |
| </html> |
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