gauss (26oct11)

git-svn-id: svn://tug.org/texlive/trunk@24411 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 33 insertions, 25 deletions

diff --git a/Master/texmf-dist/tex/latex/gauss/gauss.sty b/Master/texmf-dist/tex/latex/gauss/gauss.sty
index 7c1dc7c34f9..a6da7faa147 100644
--- a/Master/texmf-dist/tex/latex/gauss/gauss.sty
+++ b/Master/texmf-dist/tex/latex/gauss/gauss.sty
@@ -1,3 +1,9 @@
+% TODO: 
+%  *  ALLOW FINE TUNING OF ARROW ETC ARRANGEMENT BY PARAMETERS
+%     (Suggestion by Antonis Tsolomitis)
+%  *  BUG: ROWOPMINSIZE AND COLOPMINSIZE DONT WORK IN \swap01 etc.
+%     (MAXIMUM COMPUTATION MISSIG)
+%  *  BUG: ARROWHT HAS TWO CONTRADICTING MEANINGS
 %
 % \title{\texttt{gauss.sty} -- A Package for Typesetting Matrix Operations}
 % \author{Manuel Kauers}
@@ -39,11 +45,11 @@
 %   \add[-3]01
 %   \add[-1]02
 %   \swap34
-%   \mult5{\cdot0}
+%   \mult5{\cdot   0}
 %   \add[x^2-1]53
 %  \colops
 %   \swap01
-%   \mult3{\cdot1}
+%   \mult3{\cdot   1}
 %   \add[0]24
 %  \end{gmatrix} = \begin{gmatrix}[v]
 %   0 & 1 & 5 & 7 & 2 \\
@@ -102,11 +108,11 @@
 % commands are specified as follows:
 %
 % \begin{enumerate}
-% \item |\mult{i}{\cdot b}| typesets the operation ``multiply the $i$th row (or column)
+% \item |\mult{i}{\cdot   b}| typesets the operation ``multiply the $i$th row (or column)
 %   by~$b$'',
 % \item |\swap[a][b]{i}{j}| typesets the operation ``swap the $i$th and the $j$th row 
 %   (or column)''.
-%   $a$~and~$b$ are labels to typeset at the end of the arrows, similar to the $\cdot b$ of
+%   $a$~and~$b$ are labels to typeset at the end of the arrows, similar to the $\cdot   b$ of
 %   the |\mult| command. The command does nothing if $i=j$.
 % \item |\add[a][b]{i}{j}| typesets the operation ``add the $a$-fold of row (or column)~$i$ to
 %   row (or column)~$j$. $b$~is a label for the $j$th line. The command does nothing if $i=j$.
@@ -118,7 +124,7 @@
 % Rows are counted top-down, and columns are counted from left to right. The uppermost row
 % and the leftmost column have the index~0. There is also the posibility to use |*| as index
 % which causes the typesetting of several operations where |*| runs over all indices. For
-% example, |\mult{*}{5}| in the |\rowops| section of a $n\times n$ matrix is equivalent to
+% example, |\mult{*}{5}| in the |\rowops| section of a $n\times   n$ matrix is equivalent to
 % state |\mult{0}{5}|,\dots,|\mult{|$n-1$|}{5}|.
 % \end{macro}
 % \end{macro}
@@ -135,12 +141,12 @@
 %  | 7 & 8 & 9|
 %  |\rowops|
 %  | \swap{0}{1}|
-%  | \mult{0}{\cdot 7}|
+%  | \mult{0}{\cdot   7}|
 %  | \add[5]{1}{2}|
 %  |\end{gmatrix}|
 % \switch
 %  \begin{gmatrix}[p] 1&2&3\\4&5&6\\7&8&9 \rowops
-%  \swap01\mult0{\cdot 7}\add[5]12
+%  \swap01\mult0{\cdot   7}\add[5]12
 %  \end{gmatrix}
 % \end{example}
 % \item The same operations in an other ordering
@@ -152,11 +158,11 @@
 %  |\rowops|
 %  | \add[5]{1}{2}|
 %  | \swap{0}{1}|
-%  | \mult{0}{\cdot 7}|
+%  | \mult{0}{\cdot   7}|
 %  |\end{gmatrix}|
 % \switch
 %  \begin{gmatrix}[p] 1&2&3\\4&5&6\\7&8&9 \rowops
-%  \add[5]12\swap01\mult0{\cdot 7}
+%  \add[5]12\swap01\mult0{\cdot   7}
 %  \end{gmatrix}
 % \end{example}
 % \item A matrix with column operations
@@ -167,12 +173,12 @@
 %  | 7 & 8 & 9|
 %  |\colops|
 %  | \swap{0}{1}|
-%  | \mult{0}{\cdot 7}|
+%  | \mult{0}{\cdot   7}|
 %  | \add[5]{1}{2}|
 %  |\end{gmatrix}|
 % \switch
 %  \begin{gmatrix}[p] 1&2&3\\4&5&6\\7&8&9 \colops
-%  \swap01\mult0{\cdot 7}\add[5]12
+%  \swap01\mult0{\cdot   7}\add[5]12
 %  \end{gmatrix}
 % \end{example}
 % \item A matrix with both row and column operations
@@ -183,18 +189,18 @@
 %  | 7 & 8 & 9|
 %  |\rowops|
 %  | \swap{1}{2}|
-%  | \mult{2}{\cdot 3}|
+%  | \mult{2}{\cdot   3}|
 %  | \add[-5]{1}{0}|
 %  | \add[-3]{1}{2}|
 %  |\colops|
 %  | \swap{0}{1}|
-%  | \mult{0}{\cdot 7}|
+%  | \mult{0}{\cdot   7}|
 %  | \add[5]{1}{2}|
 %  |\end{gmatrix}|
 % \switch
 %  \begin{gmatrix}[v] 1&2&3\\4&5&6\\7&8&9 \rowops
-%  \swap12\mult2{\cdot 3}\add[-5]10\add[-3]12 \colops
-%  \swap01\mult0{\cdot 7}\add[5]12
+%  \swap12\mult2{\cdot   3}\add[-5]10\add[-3]12 \colops
+%  \swap01\mult0{\cdot   7}\add[5]12
 %  \end{gmatrix}
 % \end{example}
 % \item Multiple operations using the |*| index
@@ -246,16 +252,16 @@
 % Even nested |gmatrix|es are possible:
 % \[
 % \def\littleA#1#2#3#4{\begin{gmatrix}[p]#1&#2\\#3&#4\rowops \add[-#3/#1]01\end{gmatrix}}
-% \def\littleB#1#2#3#4#5{\begin{gmatrix}[p]#1&#2\\#3&#4\rowops \mult0{\cdot#5}\end{gmatrix}}
+% \def\littleB#1#2#3#4#5{\begin{gmatrix}[p]#1&#2\\#3&#4\rowops \mult0{\cdot   #5}\end{gmatrix}}
 % \def\littleC#1#2#3#4{\begin{gmatrix}[p]#1&#2\\#3&#4\rowops \swap01\end{gmatrix}}
 % \kern-1.5em
 % \begin{gmatrix}[v]
 %  \littleA 2233 & \littleC 1234 & \littleA abcd \\
 %  \rule[-20pt]{0pt}{45pt}\littleB 0110\pi & \littleC vwxy & \littleC 1xx{x^2} \\
-%  \littleB 12345 & \littleA \cdot\cdot\cdot\cdot & \littleB 54321
+%  \littleB 12345 & \littleA \cdot   \cdot   \cdot   \cdot   & \littleB 54321
 % \rowops
 %  \add[\pi^2/6]01
-%  \mult1{\cdot42}
+%  \mult1{\cdot   42}
 %  \swap02
 % \end{gmatrix}
 % \kern-1.5em
@@ -270,7 +276,7 @@
 % dimension parameters described in this section.
 %
 % \def\test{\begin{gmatrix}[p]a&b&c\\d&e&f\\g&h&i\rowops
-%  \add[x]01\add[y]12\mult1{\cdot y}\swap02\end{gmatrix}}%
+%  \add[x]01\add[y]12\mult1{\cdot   y}\swap02\end{gmatrix}}%
 % \def\ttest#1=#2.{\[#1=#2\relax\test\]}%
 %
 % \begin{macro}{\rowarrowsep}
@@ -480,12 +486,14 @@
 %  The current version of |gauss| therefore redefines all those environments 
 %  using our |\newmatrix| tool, and requires |amsmath| to be loaded prior to 
 %  the |gauss| package.
-% \item Morten H\o gholm suggested the introduction of fontifying macros and
+% \item Morten H{\o}gholm suggested the introduction of fontifying macros and
 %  the use of changeable lengths as discussed in Section~\ref{ssec:atp}. 
 %  He also suggested some very fine typographic tunings. 
 % \item Herbert Voss found that a |\unitlength=1pt| was missing to make the
 %  behaviour of the package independent of redefinitions of |\unitlength|
-%  outside |gmatrix|.
+%  outside |gmatrix|. (Fixed.)
+% \item Michael Hagedorn noticed that signs in entries a treated like
+%  binary relations, i.e., wrong spacing is used. (Fixed.)
 % \end{itemize}
 %
 % \StopEventually
@@ -493,7 +501,7 @@
 % \section{Implementation}
 %
 %    \begin{macrocode}
-\ProvidesPackage{gauss}[2002/10/11]
+\ProvidesPackage{gauss}[2003/01/14]
 \RequirePackage{amsmath}
 \makeatletter
 %    \end{macrocode}
@@ -1073,7 +1081,7 @@
  \setbox\g@trash=\hbox{$\leftarrow$}%
  \global\g@arrowwd\wd\g@trash
  % 3. What is the minimum height of a vertical arrow?
- \setbox\g@trash=\vbox{\g@vertline}
+ \setbox\g@trash=\vbox{\g@vertline}%
  \global\g@arrowht=\ht\g@trash
  \global\advance\g@arrowht\dp\g@trash
  \global\advance\g@arrowht\lineskip
@@ -1226,7 +1234,7 @@
 \def\g@rbox#1#2#3{%
  \setbox\g@label=\hbox{$\relax#3\relax$}%
  \ht\g@label\z@\dp\g@label\z@
- \setbox\g@label=\hbox{$\mathstrut\box\g@label$}%
+ \setbox\g@label=\hbox{$\mathstrut\box\g@label$}%  
  \put(\g@double{#1},\g@double{#2})%
  {\makebox(0,0)[l]{\kern-\p@\copy\g@label}}%
 }
@@ -1764,7 +1772,7 @@
 % \begin{environment}{g@matrix}
 % Finally, we have the following definition of |g@matrix|:
 %    \begin{macrocode}
-\edef\g@prae{\hfil$\relax\noexpand\mathstrut}
+\edef\g@prae{\hfil\noexpand\mathstrut$\relax}
 \edef\g@post{\relax$\hfil} 
 \newenvironment{g@matrix}
 {\setbox\g@trash=\hbox\bgroup