--- loncom/html/adm/LC_math_editor/src/tokenizer.js	2015/02/24 15:20:44	1.2
+++ loncom/html/adm/LC_math_editor/src/tokenizer.js	2015/08/13 18:30:42	1.3
@@ -144,7 +144,7 @@ main:
         
         // names
         if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
-                (c >= 'α' && c <= 'ω') || (c >= 'Α' && c <= 'Ω') || c == 'µ') {
+                (c >= 'α' && c <= 'ω') || (c >= 'Α' && c <= 'Ω') || c == 'µ' || c == '°') {
             value = c;
             i++;
             for (;;) {