0x2219 "\\ensuremath{\\centerdot}" "amssymb" "" # BULLET OPERATOR
0x221a "\\textsurd" "textcomp" "" # SQUARE ROOT
0x221e "\\ensuremath{\\infty}" "" "" # INFINITY
-#0x221f "" "" "" # RIGHT ANGLE
+# use the following macro for the character RIGHT ANGLE
+0x221f "\\LyXrightangle" "\\newcommand*\\LyXrightangle{{\\usefont{U}{msa}{m}{n}\\char120}}" ""
0x2229 "\\ensuremath{\\bigcap}" "" "" # INTERSECTION
0x222b "\\ensuremath{\\int}" "" "" # INTEGRAL
0x2248 "\\ensuremath{\\approx}" "" "" # ALMOST EQUAL TO