diff --git a/lib/evalmath/example.html b/lib/evalmath/example.html
deleted file mode 100644
index a5acdada4ba..00000000000
--- a/lib/evalmath/example.html
+++ /dev/null
@@ -1,37 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html>
-<head>
-    <title>Example use of EvalMath</title>
-</head>
-
-<body>
-    <form method="post" action="">
-        y(x) = <input type="text" name="function" value="ln(100-99/(1+e^-(3x)))">
-        <input type="submit">
-    </form>
-    	<table border="1">
-		<tr><th>x</th><th>y(x)</th>
-		<tr><td>-2</td><td>4.6027192880649</td></tr>
-		<tr><td>-1.8</td><td>4.6007089389783</td></tr>
-		<tr><td>-1.6</td><td>4.5970564127341</td></tr>
-		<tr><td>-1.4</td><td>4.5904358758421</td></tr>
-		<tr><td>-1.2</td><td>4.5784862928819</td></tr>
-		<tr><td>-1</td><td>4.5570805812015</td></tr>
-		<tr><td>-0.8</td><td>4.5192408021284</td></tr>
-		<tr><td>-0.6</td><td>4.4538441996618</td></tr>
-		<tr><td>-0.4</td><td>4.3448951339589</td></tr>
-		<tr><td>-0.2</td><td>4.1731553470264</td></tr>
-		<tr><td>0</td><td>3.9219733362813</td></tr>
-		<tr><td>0.2</td><td>3.5857394070469</td></tr>
-		<tr><td>0.4</td><td>3.1745496325453</td></tr>
-		<tr><td>0.6</td><td>2.7109297462397</td></tr>
-		<tr><td>0.8</td><td>2.2229028235855</td></tr>
-		<tr><td>1</td><td>1.7396169449748</td></tr>
-		<tr><td>1.2</td><td>1.2900869290353</td></tr>
-		<tr><td>1.4</td><td>0.90122953436788</td></tr>
-		<tr><td>1.6</td><td>0.59227355272826</td></tr>
-		<tr><td>1.8</td><td>0.36820000460355</td></tr>
-		<tr><td>2</td><td>0.21896659396653</td></tr>
-	</table>
-</body>
-</html>
diff --git a/lib/evalmath/example.php b/lib/evalmath/example.php
deleted file mode 100644
index 191bf282a67..00000000000
--- a/lib/evalmath/example.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
-<html>
-<head>
-    <title>Example use of EvalMath</title>
-</head>
-
-<body>
-    <form method="post" action="<?=$_SERVER['PHP_SELF']?>">
-        y(x) = <input type="text" name="function" value="<?=(isset($_POST['function']) ? htmlspecialchars($_POST['function']) : '')?>">
-        <input type="submit">
-    </form>
-    <?
-if (isset($_POST['function']) and $_POST['function']) {
-	include('evalmath.class.php');
-	$m = new EvalMath;
-	$m->suppress_errors = true;
-	if ($m->evaluate('y(x) = ' . $_POST['function'])) {
-		print "\t<table border=\"1\">\n";
-		print "\t\t<tr><th>x</th><th>y(x)</th>\n";
-		for ($x = -2; $x <= 2; $x+=.2) {
-			$x = round($x, 2);
-			print "\t\t<tr><td>$x</td><td>" . $m->e("y($x)") . "</td></tr>\n";
-		}
-		print "\t</table>\n";
-	} else {
-		print "\t<p>Could not evaluate function: " . $m->last_error . "</p>\n";
-	}
-}
-?>
-</body>
-</html>
diff --git a/lib/evalmath/readme_moodle.txt b/lib/evalmath/readme_moodle.txt
index 00bc223824e..6f5a33fefa2 100644
--- a/lib/evalmath/readme_moodle.txt
+++ b/lib/evalmath/readme_moodle.txt
@@ -4,6 +4,7 @@ Our changes:
 * implicit multiplication not allowed
 * new custom calc emulation functions
 * removed e and pi constants - not use din calc
+* removed sample files
 
 To see all changes diff against version 1.1
 

x	y(x)
-2	4.6027192880649
-1.8	4.6007089389783
-1.6	4.5970564127341
-1.4	4.5904358758421
-1.2	4.5784862928819
-1	4.5570805812015
-0.8	4.5192408021284
-0.6	4.4538441996618
-0.4	4.3448951339589
-0.2	4.1731553470264
0	3.9219733362813
0.2	3.5857394070469
0.4	3.1745496325453
0.6	2.7109297462397
0.8	2.2229028235855
1	1.7396169449748
1.2	1.2900869290353
1.4	0.90122953436788
1.6	0.59227355272826
1.8	0.36820000460355
2	0.21896659396653