Diacritic Tables

The meaning of diacritic today has broadened beyond its original scope of being a marking on a character to distinguish it from a similar one.  Diacritics not only cover markings on characters but also unique symbols that do not necessarily fit into language scripts.  Some examples of these types of diacritics are mathematic, scientific, and geometric. 

Below are links to six diacritic tables that deal with problematic symbols that catalogers have to deal with when uploading bibliographic records into OCLC.  Each table provides programming code options and keyboard shortcuts for problematic diacritics.