Subject: TeXhax Digest V89 # 71 From: TeXhax Digest Errors-To: TeXhax-request@cs.washington.edu Maint-Path: TeXhax-request@cs.washington.edu To: TeXhax-Distribution-List:; Reply-To: TeXhax@cs.washington.edu TeXhax Digest Tuesday, August 1, 1989 Volume 89 : Issue 71 Moderators: Tiina Modisett and Pierre MacKay %%% The TeXhax digest is brought to you as a service of the TeX Users Group %%% %%% in cooperation with the UnixTeX distribution service at the %%% %%% University of Washington %%% Today's Topics: IBM 3820 output on MVS Needed: page styles Simple LaTeX questions and local guides Catcodes and mathcodes Defining an environment that does nothing A change to subeqn.sty Ascii chart -------------------------------------------------------------------------- Date: Wed, 26 Jul 89 16:24:43 -0700 From: Louis M. McDonald Subject: IBM 3820 output on MVS Keywords: IBM 3820, dviware Does anyone know where I can get an DVI to IBM3820 program? I would prefer that it run on VAX/VMS so I can ship the file to the IBM for printing. Otherwise, I will be satified with it running under MVS...(ug!) Louis McDonald louis@aerospace.aero.org ------------------------------------------------------------------------------ Date: Fri, 28 Jul 89 15:08:30 GMT From: Vivian Harrington Subject: Needed: page styles Keywords: LaTeX, page styles Hi I need the page numbers at the bottom of the page and positioned in the left corner for the left-side page and the right corner for the right-side page ( like the Latex Users Guide except I need footers rather that headers). Thanks in advance. Vivian Harrington University College Dublin ---------------------------------------------------------------------------- Date: Fri, 28 Jul 89 09:01 CDT From: U2591AA@VMS.UCC.OKSTATE.EDU Subject: Simple LaTeX questions and local guides Keywords: LaTeX, suggestions There have been a lot of simple requests regarding LaTeX on TeXhax recently, and at least as many gripes about the requests. The following suggestions might help cut down some of the requests: 1. The first paragraph of every "Local Guide to LaTeX" should state that every one who hopes to use LaTeX **MUST** buy the book. Our local guide states that I will not answer LaTeX questions unless the user owns the book and knows where the index is located. (For heaven's sake (and LL's), if you don't have a local guide, MAKE ONE! Maybe LL's example local guide can be copied out of the shar file in which it resides in the archives and made easily accessible via ftp.) 2. If you tell someone about TeXhax, tell them it is not meant for LaTeX questions which can be easily answered by looking in the index. 3. Watch for an upcoming announcement about a LaTeX Volunteer Help Corps. Keep the information and tell your users about it. 4. When you talk to new LaTeX users, tell them about other people in the building who use LaTeX. Answers from friends are usually faster than answers from TeXhax. Scott McCullough Dept. of Physics Oklahoma State University Stillwater, OK 74078-0444 u2591aa@vms.ucc.okstate.edu (internet) u2591aa@uccvms (bitnet) ------------------------------------------------------------------------ Date: Sat, 29 Jul 89 09:22:03 GMT From: "Wayne G. Sullivan" Subject: Catcodes and mathcodes Keywords: TeX, catcodes, mathcodes The example I sent earlier, thanks to some elucidation from Chris Thompson, I recognize to be a 'feature' of TeX and not a 'bug': catcode`\_=\active \def_{\char`\_} $ _ $ \bye The problem here is that in mathmode TeX treats ordinary characters whose mathcode is 32768 as active characters. When TeX (using the plain format) sees '_' as an ordinary character and not a subscript marker, it replaces it by its active character value, which was redefined here to be essentially "the character '_'". Upon evaluating this value, the mathcode is again computed and TeX again looks up the active character value of '_' resulting in a loop until one intervenes. The moral is that if one wishes to redefine catcodes to make active characters, one should check the mathcode: if it is 32768, then extra care is necessary to avoid difficulties. Perhaps one should redefine the mathcode as well. So long as mathmode is not entered, a conflict between definitions as active characters will not arise. However, TeX moves easily into mathmode in many contexts, so the lack of explicit math delimiters is not sufficient to insure that mathmode is not used. Wayne Sullivan ------------------------------------------------------------------------------- Date: Wed, 26 Jul 89 20:54 EST From: Subject: Defining an environment that does nothing Keywords: environment, TeX, LaTeX How can I define an environment "nothing" so that nothing between \begin{nothing} and \end{nothing} is output. For instance, I would like this is text \\ \begin{nothing} here is something\\ here is more \\ \end{nothing} this is text to produce this output: this is text this is text It is trivial to write a command to do this; how do I turn the command into an envrionment? Steve Fisk Department of Mathematics 207-725-3574 Bowdoin College fisk@bowdoin.bitnet Brunswick, Me. 04011 USA -------------------------------------------------------------------------- Date: Sun, 30 Jul 89 11:19:26 EDT From: Rick Zaccone Subject: A change to subeqn.sty Keywords: LaTeX, environment, subequations In TeXhax v89n007, Johannes Braams (braams@hlsdnl5.bitnet) posted a bug fix to the subeqn environment. I found this environment to be useful but it lacked an important capability. I group equations into a subequation environment because they are related in some manner. This means that I sometimes want to refer to them as a group. I have made a change to the environment that allows a user to label and refer to all of the equations in a subequation environment as a group. Attached is the revised version of subeqn.sty, and a sample file. Rick Zaccone zaccone@bknlvms.bitnet zaccone@sol.bucknell.edu % ---------------------------------------------------------------------- % This LaTeX environment is for %printing subequations. To use this environment, include in the %\documentstyle header a command to load in the .sty file containing this %macro. For example: % \documentstyle[subeqn]{article} %if you have the macro in a file subeqn.sty. The environment seems pretty %well documented in the comments. % % Modified : June 8, 1989. You can now reference either individual % equations in the subequations environment, or all of % them. If you use a \label command immediately after the % \begin{subequations} command, then a reference to that % label will generate a reference to the equation number % without the alphabetic extension. % % Rick Zaccone % zaccone@bknlvms.bitnet % zaccone@sol.bucknell.edu % Modified : 16 - january - 1989 by Johannes Braams ( BRAAMS@HLSDNL5) % Added \global\@ignoretrue in the definition of % \endsubequations in order to prevent a spurious space % at the beginning of the next text-line. Also added %'s % at the end of each command-line for the same reasons. % %%%---------------------------------------------------------------- %%% File: subeqn.sty %%% The subequations environment %%% % % Within the subequations environment, the only change is that % equations are labeled differently. The number stays the same, % and lower case letters are appended. For example, if after doing % three equations, numbered 1, 2, and 3, you start a subequations % environmment and do three more equations, they will be numbered % 4a, 4b, and 4c. After you end the subequations environment, the % next equation will be numbered 5. % % Both text and equations can be put inside the subequations environment. % % If you make any improvements, I'd like to hear about them. % % Stephen Gildea % MIT Earth Resources Lab % Cambridge, Mass. 02139 % mit-erl!gildea % gildea@erl.mit.edu % \newtoks\@stequation \def\subequations{\refstepcounter{equation}% \edef\@savedequation{\the\c@equation}% \@stequation=\expandafter{\theequation}% %only want \theequation \edef\@savedtheequation{\the\@stequation}% %expanded once \edef\oldtheequation{\theequation}% \setcounter{equation}{0}% \def\theequation{\oldtheequation\alph{equation}}}% \def\endsubequations{% \setcounter{equation}{\@savedequation}% \@stequation=\expandafter{\@savedtheequation}% \edef\theequation{\the\@stequation}\global\@ignoretrue} %%%---------------------------- % ---------------------------------------------------------------------- Here's an example. \documentstyle[subeqn]{article} \begin{document} Here is an equation with a number. \begin{equation} Ax = b \end{equation} Now begin some subequations. \begin{subequations} \label{eq:a} Here's one. \begin{equation} \label{eq:c} Ax = c \end{equation} Here's another. \begin{equation} \label{eq:d} Ax = d \end{equation} \end{subequations} Now, I can refer to individual equations such as~(\ref{eq:c}) and~(\ref{eq:d}), or I can refer to~(\ref{eq:a}), which is the entire group. \end{document} --------------------------------------------------------------------- Date: Mon, 31 Jul 89 09:53:57 MET From: Victor Eijkhout Subject: Ascii chart Keywords: TeX, ASCII chart Hello, on usenet someone asked if an Ascii chart in TeX existed. Well, after one saturday night of hacking it does! This gives 7-bit ascii in binary/octal/decimal/hex form in a nice tabular format, so once you know (and i'm telling you now) that the control-key zeros bits 6 and 7, this allows you to deduce that for instance ctrl-m equals a cr. Plain TeX, of course, but by commenting in/out a few lines you can make it LaTeX, if that's what you want. For some reason however, the table then winds up on page two... Also the code does contain a couple of kludges, so don't look too hard. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% %% %% A S C I I wall chart %% %% %% %% by Victor Eijkhout %% %% u641000@hnykun11.bitnet %% %% %% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% %% Choose your favourite format: %% \nopagenumbers %% 2 lines \vsize=28cm %% for PLAIN TeX %\documentstyle{article} %% 4 lines for LaTeX %\begin{document} %% not that it matters anything, %\pagestyle{empty} %% rest of the document %\setlength{\textheight}{28cm} %% is 'pure' TeX. %%%%%% and don't forget the \bye / \end{document} at the end!! %%%%%%% %% fonts \font\bitfont=cmr7 \fontdimen3\bitfont=3mm \font\codefont=cmr5 \font\namefont=cmss10 scaled 1200 \font\titlefont=cmss10 scaled 1440 \font\commentfont=cmss10 %% counts and dimens \newdimen\rowheight \rowheight=1cm \newdimen\colwidth \colwidth=1.6cm \newdimen\topwhite \topwhite=2pt \newdimen\botwhite \botwhite=3pt \newdimen\leftwhite \leftwhite=2pt \newdimen\rightwhite \rightwhite=2pt \newcount\rowcount \rowcount=-1 %% note! \newcount\colcount \colcount=0 \newcount\thenumber %% tidbits \def\\{$\backslash$} \def\thinline{\vrule width .25mm} \def\fatline{\vrule width .5mm} \tolerance=10000 \vbadness=10000 %% code conversion \def\calcnumber{{\multiply\colcount by 16 \advance\colcount by \rowcount \global\thenumber=\colcount}} \def\deccode{\number\thenumber} \def\octcode{{\ifnum\thenumber>63 \advance\thenumber by -64 \count0=\thenumber \divide\count0 by 8 1\number\count0 \else \count0=\thenumber \divide\count0 by 8 \ifnum\count0>0 \number\count0 \fi\fi \multiply\count0 by 8 \advance\thenumber by -\count0 \number\thenumber}} \def\hexdigit#1{\ifcase#1 0\or 1\or 2\or 3\or 4\or 5\or 6\or 7\or 8\or 9\or A\or B\or C\or D\or E\or F\or \edef\tmp{\message{illegal hex digit \number#1}}\tmp \fi} \def\hexcode{{\count0=\thenumber \divide\count0 by 16 \ifnum\count0>0 \hexdigit{\count0}\fi \multiply\count0 by 16 \advance\thenumber by -\count0 \count0=\thenumber \hexdigit{\count0}}} %% the heading \def\threebit#1#2#3{\vbox to 1.2\rowheight{\bitfont \vskip\topwhite \hbox to \colwidth{\hskip\leftwhite#1\hfil} \vfil \hbox to \colwidth{\hfil#2\hfil} \vfil \hbox to \colwidth{\hfil#3\hskip\rightwhite} \vskip\botwhite}} \def\comment#1{\vbox to \colwidth{\hrule height 0mm depth .25mm \vfil \hbox to 2\colwidth{\commentfont\hfil#1\hfil} \vfil}} \def\dcomment#1#2{\vbox to \colwidth{\hrule height 0mm depth .25mm \vfil \hbox to 2\colwidth{\commentfont\hfil#1\hfil} \vskip \botwhite \hbox to 2\colwidth{\commentfont\hfil#2\hfil} \vfil}} \def\bithead{\vbox to \colwidth{\hsize=1.5\colwidth \vskip\topwhite \hbox to \hsize{\commentfont\hfil BITS\hfil} \vfil \hbox to \hsize{\bitfont\ b4 b3 b2 b1 } \vskip\botwhite}} %% routines for single chars \def\fourbit#1\fb{\vbox to \rowheight{ \vfil \hbox to 1.5\colwidth{\bitfont #1\ } \vfil}% \global\advance\rowcount by 1 \global\colcount=0} \def\asc#1\ii{\calcnumber \vbox to \rowheight{\offinterlineskip \vskip\topwhite \hbox to \colwidth{\codefont \hskip\leftwhite \deccode\hfil} \vfil \hbox to \colwidth{\vrule width 0cm height 10pt depth 2pt \namefont \hfil#1\hfil} \vfil \hbox to \colwidth{\codefont \hskip\leftwhite \hexcode\hfil\octcode \hskip\rightwhite} \vskip\botwhite}% \global\advance\colcount by 1} %%%%%%%%%%%%%%%%% and now the table itself %%%%%%%%%%%%%%%%%%%%%%%%% \vbox{ \halign{\fourbit#\fb&\fatline\asc#\ii&\thinline\asc#\ii& \fatline\asc#\ii&\thinline\asc#\ii& \fatline\asc#\ii&\thinline\asc#\ii& \fatline\asc#\ii&\thinline\asc#\ii\fatline\cr \omit&\multispan8\titlefont ASCII CONTROL CODE CHART\hfil\cr \noalign{\vskip3mm \hrule} \omit\hfil\threebit{b7}{b6}{b5} &\omit\fatline\threebit000&\omit\thinline\threebit001% &\omit\fatline\threebit010&\omit\thinline\threebit011% &\omit\fatline\threebit100&\omit\thinline\threebit101% &\omit\fatline\threebit110&\omit\thinline\threebit111% \fatline\cr \noalign{\vskip-.5mm} %brute force \omit\bithead &\omit\fatline\comment{CONTROL}\span\omit &\omit\fatline\dcomment{SYMBOLS}{NUMBERS}\span\omit &\omit\fatline\comment{UPPER CASE}\span\omit &\omit\fatline\comment{LOWER CASE}\span\omit\hfil\fatline \cr \noalign{\hrule} {} 0 0 0 0&NUL&DLE&SP &0 &@ &P &` &p \cr \noalign{\hrule} {} 0 0 0 1&SOH&DC1&! &1 &A &Q &a &q \cr \noalign{\hrule} {} 0 0 1 0&STX&DC2&" &2 &B &R &b &r \cr \noalign{\hrule} {} 0 0 1 1&ETX&DC3&\# &3 &C &S &c &s \cr \noalign{\hrule} {} 0 1 0 0&EOT&DC4&\$ &4 &D &T &d &t \cr \noalign{\hrule} {} 0 1 0 1&ENQ&NAK&\% &5 &E &U &e &u \cr \noalign{\hrule} {} 0 1 1 0&ACK&SYN&\& &6 &F &V &f &v \cr \noalign{\hrule} {} 0 1 1 1&BEL&ETB&' &7 &G &W &g &w \cr \noalign{\hrule} {} 1 0 0 0&BS &CAN&( &8 &H &X &h &x \cr \noalign{\hrule} {} 1 0 0 1&HT &EM &) &9 &I &Y &i &y \cr \noalign{\hrule} {} 1 0 1 0&LF &SUB&* &: &J &Z &j &z \cr \noalign{\hrule} {} 1 0 1 1&VT &ESC&+ &; &K &[ &k &$\{$\cr \noalign{\hrule} {} 1 1 0 0&FF &FS &, &$<$&L &\\ &l &$|$ \cr \noalign{\hrule} {} 1 1 0 1&CR &GS &$-$ &= &M &] &m &$\}$\cr \noalign{\hrule} {} 1 1 1 0&SO &RS &. &$>$&N &\~{} &n &\c{}\cr \noalign{\hrule} {} 1 1 1 1&SI &US &/ &? &O &\_$\!$\_&o &DEL\cr \noalign{\hrule} \noalign{\vskip2mm} \omit&\omit\namefont \hfil LEGEND:\hfil \span\omit &\multispan4\vtop{\vskip-10pt \hbox{\vrule \vbox to \rowheight{ \offinterlineskip \hrule\vskip \topwhite \hbox to \colwidth{\codefont\hskip\leftwhite dec\hfil} \vfil \hbox to \colwidth{\namefont\hfil CHAR\hfil} \vfil \hbox to \colwidth{\codefont\hskip\leftwhite hex\hfil oct \hskip\rightwhite} \vskip\botwhite \hrule }% \vrule}} \hfil &\multispan2\bitfont realization: Victor\hfil\cr } } %%%%%%%%%%%%%%%%%%%%%%% and that's it folks! %%%%%%%%%%%%%%%%%%%%%%%%%% \bye %% PLAIN TeX %\end{document} %% LaTeX >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Share and enjoy! Victor Eijkhout Department of Mathematics University of Nijmegen Toernooiveld 5 "Far out in the uncharted 6525 ED Nijmegen, the Netherlands backwaters of the unfash- ionable end of the 080-613169 western spiral arm of the galaxy" u641000@HNYKUN11.BITNET ----------------------------------------------------------------------- %%% Further information about the TeXhax Digest, the TeX %%% Users Group, and the latest software versions is available %%% in every tenth issue of the TeXhax Digest. %%% %%% Concerning subscriptions, address changes, unsubscribing: %%% %%% BITNET: send a one-line mail message to LISTSERV@xxx %%% SUBSCRIBE TEX-L % to subscribe %%% or UNSUBSCRIBE TEX-L %%% %%% Internet: send a similar one line mail message to %%% TeXhax-request@cs.washington.edu %%% JANET users may choose to use %%% texhax-request@uk.ac.nsf %%% All submissions to: TeXhax@cs.washington.edu %%% %%% Back issues available for FTPing as: %%% machine: directory: filename: %%% JUNE.CS.WASHINGTON.EDU TeXhax/TeXhaxyy.nn %%% yy = last two digits of current year %%% nn = issue number %%% %%%\bye %%% End of TeXhax Digest ************************** -------