The appendices of instructions or papers are numbered as Appendix A, Appendix B and Appendix C in turn. If there is only one appendix, it should also be compiled as "Appendix A". The naming method of figures, tables and formulas in the appendix also adopts the naming method of the above figures, tables and formulas, except that the chapter number is changed to the appendix number. So the figures, tables and formulas in the appendix should be named.

Papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short.