--- loncom/html/adm/LC_math_editor/src/tokenizer.js	2014/09/24 18:14:39	1.1
+++ loncom/html/adm/LC_math_editor/src/tokenizer.js	2015/02/24 15:20:44	1.2
@@ -18,6 +18,8 @@ through which recipients can access the
 
 */
 
+"use strict";
+
 /**
  * String tokenizer. Recognizes only names, numbers, and parser operators.
  * @constructor
@@ -141,12 +143,14 @@ main:
         }
         
         // names
-        if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
+        if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
+                (c >= 'α' && c <= 'ω') || (c >= 'Α' && c <= 'Ω') || c == 'µ') {
             value = c;
             i++;
             for (;;) {
                 c = this.text.charAt(i);
                 if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
+                        (c >= 'α' && c <= 'ω') || (c >= 'Α' && c <= 'Ω') || c == 'µ' ||
                         (c >= '0' && c <= '9') || c === '_') {
                     value += c;
                     i++;