+++ /dev/null
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">\r
-<html>\r
-<head>\r
- <title>Example use of EvalMath</title>\r
-</head>\r
-\r
-<body>\r
- <form method="post" action="">\r
- y(x) = <input type="text" name="function" value="ln(100-99/(1+e^-(3x)))">\r
- <input type="submit">\r
- </form>\r
- <table border="1">\r
- <tr><th>x</th><th>y(x)</th>\r
- <tr><td>-2</td><td>4.6027192880649</td></tr>\r
- <tr><td>-1.8</td><td>4.6007089389783</td></tr>\r
- <tr><td>-1.6</td><td>4.5970564127341</td></tr>\r
- <tr><td>-1.4</td><td>4.5904358758421</td></tr>\r
- <tr><td>-1.2</td><td>4.5784862928819</td></tr>\r
- <tr><td>-1</td><td>4.5570805812015</td></tr>\r
- <tr><td>-0.8</td><td>4.5192408021284</td></tr>\r
- <tr><td>-0.6</td><td>4.4538441996618</td></tr>\r
- <tr><td>-0.4</td><td>4.3448951339589</td></tr>\r
- <tr><td>-0.2</td><td>4.1731553470264</td></tr>\r
- <tr><td>0</td><td>3.9219733362813</td></tr>\r
- <tr><td>0.2</td><td>3.5857394070469</td></tr>\r
- <tr><td>0.4</td><td>3.1745496325453</td></tr>\r
- <tr><td>0.6</td><td>2.7109297462397</td></tr>\r
- <tr><td>0.8</td><td>2.2229028235855</td></tr>\r
- <tr><td>1</td><td>1.7396169449748</td></tr>\r
- <tr><td>1.2</td><td>1.2900869290353</td></tr>\r
- <tr><td>1.4</td><td>0.90122953436788</td></tr>\r
- <tr><td>1.6</td><td>0.59227355272826</td></tr>\r
- <tr><td>1.8</td><td>0.36820000460355</td></tr>\r
- <tr><td>2</td><td>0.21896659396653</td></tr>\r
- </table>\r
-</body>\r
-</html>\r
+++ /dev/null
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">\r
-<html>\r
-<head>\r
- <title>Example use of EvalMath</title>\r
-</head>\r
-\r
-<body>\r
- <form method="post" action="<?=$_SERVER['PHP_SELF']?>">\r
- y(x) = <input type="text" name="function" value="<?=(isset($_POST['function']) ? htmlspecialchars($_POST['function']) : '')?>">\r
- <input type="submit">\r
- </form>\r
- <?\r
-if (isset($_POST['function']) and $_POST['function']) {\r
- include('evalmath.class.php');\r
- $m = new EvalMath;\r
- $m->suppress_errors = true;\r
- if ($m->evaluate('y(x) = ' . $_POST['function'])) {\r
- print "\t<table border=\"1\">\n";\r
- print "\t\t<tr><th>x</th><th>y(x)</th>\n";\r
- for ($x = -2; $x <= 2; $x+=.2) {\r
- $x = round($x, 2);\r
- print "\t\t<tr><td>$x</td><td>" . $m->e("y($x)") . "</td></tr>\n";\r
- }\r
- print "\t</table>\n";\r
- } else {\r
- print "\t<p>Could not evaluate function: " . $m->last_error . "</p>\n";\r
- }\r
-}\r
-?>\r
-</body>\r
-</html>\r
projects / moodle.git / commitdiff