#define XKB_KEY_dintegral 0x100222C /* U+222C DOUBLE INTEGRAL */
#define XKB_KEY_tintegral 0x100222D /* U+222D TRIPLE INTEGRAL */
#define XKB_KEY_because 0x1002235 /* U+2235 BECAUSE */
-#define XKB_KEY_approxeq 0x1002248 /* U+2245 ALMOST EQUAL TO */
-#define XKB_KEY_notapproxeq 0x1002247 /* U+2247 NOT ALMOST EQUAL TO */
+#define XKB_KEY_approxeq 0x1002248 /*(U+2248 ALMOST EQUAL TO)*/
+#define XKB_KEY_notapproxeq 0x1002247 /*(U+2247 NEITHER APPROXIMATELY NOR ACTUALLY EQUAL TO)*/
#define XKB_KEY_notidentical 0x1002262 /* U+2262 NOT IDENTICAL TO */
#define XKB_KEY_stricteq 0x1002263 /* U+2263 STRICTLY EQUIVALENT TO */