On Fri, Dec 21, 2001 at 12:20:38PM +0200, Tomer Altman wrote: > 1. How can I add a vertical line between Matrix columns? > For Horizantal lines I use \cline{from-to} which works fine. But I > haven't found the command to do the same for vertical lines.
\vline > 2. How can I change Matrix size / alignment after I created it and put > values in it? > Tried to change values in the Math Panel and "Apply"... doesn't work > (and adds unwanted spaces). You can't. This will be possible in 1.2.0 > 3. Is there a way to combine matrix squares? (like in Tabulars) Do you mean multi-column ? It is supported by latex, but not by lyx. > 4. How do I fix/use the, probably, bug with Multi-line equations when I > mistakely delete the 3rd Square and it becomes only 2? press ctrl+tab at the end of the 2nd box, and the 3rd box will reappear. BTW, this bug has been fixed in 1.2.0 > 5. Is there a shortcut to insert delimeters? (opening math panel, > pressing on delim button and apply sure does take lotsa time) Yes. E.g. M-m ( > 6. Is there an easy way to insert a well aligned matrix for "Long > Fractions"? \usepackage{longdiv} in the preamble (longdiv.sty is attached) and then \longdiv{10}{5}. > 7. What's the correct way to insert Hexadecimal digits? (i've been using > m-c r and the letter so it'll be straight) It depends on what you want to do. > > 8. What's the shortcut/place to insert a Field letter like N,Z,Q,R,C > that will look like the written letter and not like just a big letter? There are several suitable fonts. For example, \mathbb{N} with \usepackage{bbold} in the preamble (or enable "use ams math" in the document dialog") \mathbbm{N} with \usepackage{bbm} in the preamble \mathds{N} with \usepackage{dsfont} in the preamble
% longdiv.tex v.1 (1994) Donald Arseneau % % Work out and print integer long division problems. Use: % \longdiv{numerator}{denominator} % The numerator and denominator (divisor and dividend) must be integers, and % the quotient is an integer too. \longdiv leaves a remainder. % Use this in any type of TeX. \newcount\gpten % (global) power-of-ten -- tells which digit we are doing \countdef\rtot2 % running total -- remainder so far \countdef\LDscratch4 % scratch \def\longdiv#1#2{% \vtop{\normalbaselines \offinterlineskip \setbox\strutbox\hbox{\vrule height 2.1ex depth .5ex width0ex}% \def\showdig{$\underline{\the\LDscratch\strut}$\cr\the\rtot\strut\cr \noalign{\kern-.2ex}}% \global\rtot=#1\relax \count0=\rtot\divide\count0by#2\edef\quotient{\the\count0}%\show\quotient % make list macro out of digits in quotient: \def\temp##1{\ifx##1\temp\else \noexpand\dodig ##1\expandafter\temp\fi}% \edef\routine{\expandafter\temp\quotient\temp}% % process list to give power-of-ten: \def\dodig##1{\global\multiply\gpten by10 }\global\gpten=1 \routine % to display effect of one digit in quotient (zero ignored): \def\dodig##1{\global\divide\gpten by10 \LDscratch =\gpten \multiply\LDscratch by##1% \multiply\LDscratch by#2% \global\advance\rtot-\LDscratch \relax \ifnum\LDscratch>0 \showdig \fi % must hide \cr in a macro to skip it }% \tabskip=0pt \halign{\hfil##\cr % \halign for entire division problem $\quotient$\strut\cr #2$\,\overline{\vphantom{\big)}% \hbox{\smash{\raise3.5\fontdimen8\textfont3\hbox{$\big)$}}}% \mkern2mu \the\rtot}$\cr\noalign{\kern-.2ex} \routine \cr % do each digit in quotient }}} \endinput \noindent Here are some long division problems \indent \longdiv{12345}{13} \quad \longdiv{123}{1234} \quad \longdiv{31415926}{2} \quad \longdiv{81}{3} \quad \longdiv{1132}{99} \quad \longdiv{86491}{94} \bye