22 Appendix C. WHERE TO FIND OTHER INFORMATIONA.3.4 The \boldsymbol command didn’t workThis probably means that the font necessary to produce a bold version of the symbol in question is not available on yoursystem or not installed in a way that <strong>LATEX</strong> can use it. For example, bold versions of the <strong>AMS</strong> extra symbol fonts msam andmsbm do not currently exist, so \boldsymbol{\square} will merely produce the same result as \square alone.Also, the weight of the fonts cmmib and cmbsy is ‘bold’ rather than ‘bold extended’ as for cmbx. Depending on thesymbol in question and the resolution of your printer (or previewer), a symbol that was taken from one of those two boldsymbol fonts might be nearly indistinguishable from the non-bold version.—Appendix B—Other useful items for mathematical documentsB.1 <strong>AMS</strong> documentclasses (amsart, amsbook, amsproc)The American Mathematical Society provides custom <strong>AMS</strong>-<strong>LATEX</strong> document classes for <strong>AMS</strong> journals and book series.These may obtained by anonymous FTP from the e-MATH system e-math.ams.org, directory, in the author-infoarea. (Note that directory structures may occasionally change; if you have trouble locating files you need, please contact <strong>AMS</strong>Technical Support; see Appendix D.) Specific and generic classes can be requested by e-mail to ams-latex@math.ams.orgor ordered on floppy disk through the <strong>AMS</strong> Customer Services Department at cust-serv@math.ams.org or 800-321-4267.B.2 Extra math fonts (the <strong>AMS</strong>Fonts collection)The ‘<strong>AMS</strong>Fonts’ font collection is a set of extra math fonts that supplements the standard set of <strong>LATEX</strong> math fonts. It includes<strong>LATEX</strong> packages called amsfonts and amssymb that make it easy to use the extra fonts in a <strong>LATEX</strong> document. If you don’thave the <strong>AMS</strong>Fonts collection already on your system, and would like to use some of the symbols in it, it can be obtained byanonymous FTP from CTAN (see x??) or from the e-MATH system at e-math.ams.org. It can also be ordered on diskfrom the <strong>AMS</strong> Customer Services Department at cust-serv@math.ams.org or 800-321-4267.B.3 Syntax checking (the syntonly package)If you are working on a relatively slow computer system you might want to try the syntonly package. This makes <strong>LATEX</strong>skim through your document only checking for proper syntax and usage of the commands, but not producing any printedpages. As <strong>LATEX</strong> runs quite a bit faster under those conditions, for early error-checking runs of a document this can save youvaluable time. The syntonly package is a standard <strong>LATEX</strong> package so you should find it already on your system; to use it,write\usepackage{syntonly}\syntaxonlyWhen you want to produce pages, comment out the second line by adding a percent character:%\syntaxonlyB.4 Verbatim and comments (the verbatim package)The verbatim package is another standard <strong>LATEX</strong> package, like syntonly. In addition to some minor enhancements forthe verbatim environment, it provides a comment environment that skips everything between \begin{comment} andthe next \end{comment}. A command \verbatiminput is also provided for typesetting a whole file in verbatim style.B.5 Commutative diagrams and other diagrams (packages diagram, xypic, pstricks)The amscd package for commutative diagrams that is included in the <strong>AMS</strong>-<strong>LATEX</strong> distributionis quite limited. The followingpackages are worth investigation for authors who need more powerful diagram features: diagram, xypic, pstricks.These are available by anonymous FTP from CTAN (see x??). The diagram package, by Michael Barr, focuses on commutativediagrams and is thus smaller than the others; it uses <strong>LATEX</strong> arrows as produced by \vector for diagram construction.The xypic package, by Kristoffer Rose, is a more general diagram package; it requires special arrow fonts (included inthe xypic distribution) or PostScript capabilities in your system. The pstricks package, by Timothy van Zandt, alsoprovides general diagram object commands; it is strictly for PostScript use, as the name implies.
Appendix D. GETTING HELP 23—Appendix C—Where to find other informationC.1 Technical notesThe file technote.tex contains some remarks on miscellaneous technical questions related to <strong>AMS</strong>-<strong>LATEX</strong>; they arerelegated to a separate document because they are unlikely to be of interest to most users.C.2 Differences between <strong>AMS</strong>-<strong>LATEX</strong> version 1.1 and <strong>AMS</strong>-<strong>LATEX</strong> version <strong>1.2</strong><strong>Version</strong> <strong>1.2</strong> of <strong>AMS</strong>-<strong>LATEX</strong> fills in some gaps and corrects some mistakes in the <strong>AMS</strong>-<strong>LATEX</strong> 1.1 feature set. The significantdifferences, from a user’s perspective, are described in the document diff12.tex.—Appendix D—Getting helpQuestions or comments regarding the <strong>AMS</strong>-<strong>LATEX</strong> package should be sent to:American Mathematical SocietyTechnical SupportElectronic Products and ServicesP. O. Box 6248Providence, RI 02940Phone: 800-321-4<strong>AMS</strong> (321-4267) or 401-455-4080Internet: tech-support@math.ams.orgIf you are reporting a problem you should include the following information to make proper investigation possible:1. The source file where the problem occurred, preferably reduced to minimum size by removing any material that can beremoved without affecting the observed problem.2. A <strong>LATEX</strong> log file showing the error message (if applicable) and the version numbers of the document class and optionfiles being used.D.1 Further informationInformation about obtaining <strong>AMS</strong>Fonts or other TEX-related software from the <strong>AMS</strong> Internet archive e-math.ams.orgcan be obtained by sending a request through electronic mail to: e-math@math.ams.org.