Mathmode.pdf : math in TeX/LaTeX; package amsmath.sty needs package showexpl. Mathmode.ltx : main source file (preamble) Mathmode.tex : document source Mathmode.bib : BibTeX data Mathmode.ist : index style file showexpl.cfg : config file for the showexpl package save it together with showexpl.sty images/ : subdir for all pdf|eps images