Gdddk

There is only one appendix chapter in my thesis, which Latex defaults as Appendix A. However, I need it to show up as only "Appendix" without A or 1. Can anyone please tell me how to achieve that.

Thank you so much.

You can change the secnumdepth to 0 in the appendix. This means that section numbering is switched off for all levels (parts, chapters, sections) after the command.

documentclassarticle
usepackagelipsum

begindocument
tableofcontents

sectionFirst
lipsum[1]

sectionSecond
lipsum[2]

appendix
setcountersecnumdepth0
sectionAppendix

enddocument

If you want to suppress the numbering only for the appendix, but keep the numbering for other sectional units (i.e. sections, subsections inside the appendix), then you can redefine the commands thechapter and thesection just before the appendix:

documentclassbook

begindocument

chapterA regular chapter

appendix
renewcommandthechapter
renewcommandthesectionarabicsection

chapterOnly Appendix
sectionTest section in Appendix

enddocument

Just using chapter* (or section*) for the appendix title should do the trick.

I went into the class file to do this. Essentially, there's something that looks like so:

renewcommandappendixparUTD@appendixtrue
 setcounterchapter0%
 setcountersection0%
 gdef@chapappappendixname%
 gdefthechapter@Alphc@chapter

I changed it to this:

renewcommandappendixparUTD@appendixtrue
 setcounterchapter0%
 setcountersection0%
 gdef@chapappappendixname%
 gdefthechapter 

This removes the letter but there's a white space in the ToC after APPENDIX. Win-some-lose-some. Hopefully someone get's a nicer solution someday.