General ⇒ Changing the brace »)« to a pipe »|« in polynom package

[yoyoimut]

Hi everyone,

I am useing polynom package to write my mathematics book.
However, I am not so happy with the rendered output of long division as shown below.

Polynom.sty : http://www.ctan.org/tex-archive/macros/ ... ib/polynom

Not so beautiful

bad.jpg (24.63 KiB) Viewed 2640 times

I want to change it as follows.

Beautiful

good.jpg (18.79 KiB) Viewed 2640 times

If we can change the package, how to do it?

Thank you in advance.


regards,

Yuko

[localghost]

Please upload attachments to the forum server (done here subsequently). External links can get lost with time and make a problem incomprehensible.

[...] Polynom.sty : http://www.cs.brown.edu/system/software ... olynom.pdf [...]

I wonder where people always get those links from. Just link to CTAN.

Code: Select all

http://ctan.org/pkg/polynom

There you will always get the current version of a package as well as its manual. Other links may contain obsolete versions.

[...] If we can change the package, how to do it? [...]

It is not recommendable to modify a package directly. Necessary modifications are done better by taking the critical part of the package code and modify it in the preamble of the document. This has been done in the code below.

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{polynom}

\makeatletter
\def\pld@ArrangeResult#1{%
    \ifx\pld@remainder\@empty
        \@tempcnta\pld@maxcol\relax
        \pld@InsertItems@do\pld@lastline
            {\pld@firsttrue\pld@PLD{\pld@R{0}{1}}}%
    \fi
    \ifnum\pld@currstage>\z@
        \pld@Extend\pld@allines{\pld@lastline\cr}%
    \else
        \pld@InsertFake\pld@lastline
    \fi
    \pld@iftopresult
        \def\pld@lastline{\pld@PrintPoly\pld@divisor\,\smash{\Big|}\kern-2pt&}%
    \else
        \let\pld@lastline\@empty
        \ifx B\pld@style\else
            \def\pld@lastline{\pld@leftdelim\strut\pld@rightxdelim&}%
        \fi
    \fi
    \expandafter\pld@AR@col\expandafter\pld@PLD
                           \expandafter\pld@lastline#1+\relax+%
    \pld@SplitQuotient
    \pld@iftopresult
        \let\pld@currentline\@empty
        \expandafter\pld@AR@col\expandafter\pld@PLD
                               \expandafter\pld@currentline
                                           \pld@quotient+\relax+%
        \expandafter\pld@AR@col\expandafter\pld@XPLD
                               \expandafter\pld@currentline
                                           \pld@shadow+\relax+%
        \edef\pld@subline{%
            \noexpand\cline{\tw@-\pld@maxcol}%
            \noalign{\vskip\jot}}%
        \pld@Extend\pld@currentline{\expandafter\cr\pld@subline}%
    \else
        \@tempcnta-\@tempcnta
        \advance\@tempcnta\pld@maxcol\relax \advance\@tempcnta\@ne
        \edef\pld@span{\the\@tempcnta}%
        \ifx B\pld@style
          \pld@AddTo\pld@lastline{%
            &\multispan\pld@span${}=%
            \pld@PrintPolyWithDelims\pld@divisor
            \expandafter\pld@IfSum\expandafter{\pld@divisor}{}{\cdot}%
            \expandafter\pld@IfSum\expandafter{\pld@quotient}\pld@true
                                                             \pld@false
            \pld@if \pld@leftdelim
                    \pld@PrintPolyShadow
                    \pld@rightdelim
              \else \pld@PrintPolyShadow \fi
            \pld@firstfalse
            \expandafter\pld@PrintRemain\expandafter{\pld@remainder}$}%
        \else
          \pld@AddTo\pld@lastline{%
            &\multispan\pld@span$\pld@leftxdelim\strut\pld@rightdelim
            \pld@div
            \pld@PrintPolyWithDelims\pld@divisor=
            \pld@PrintPolyShadow
            \ifx\pld@remainder\@empty\else
                +{}%
                \setbox\z@=\hbox{$\displaystyle
                  \frac{\let\strut\@empty\pld@firsttrue \expandafter
                        \pld@PrintRemain\expandafter{\pld@remainder}}%
                       {\let\strut\@empty\pld@PrintPoly\pld@divisor}$}%
                \dp\z@=\z@\box\z@
            \fi
            $}%
        \fi
    \fi
    \expandafter\pld@AR@\pld@allines\relax}
\makeatother

\begin{document}
  \polylongdiv{x^3+x^2-1}{x-1}
\end{document}

Best regards
Thorsten

[yoyoimut]

Dear localghost,

I just noticed your additional post.

That is really helpfull and works the way I want.

Thank you very much.


regards,


Yuko.