# How to enlarge zeros in the tkz-tab package?

In this code how can I enlarge the zeros? The documentation is in German and I don't know the German language.

\documentclass{article}
\usepackage{tkz-tab}

\begin{document}
\begin{tikzpicture}
\tkzTabInit[espcl=1.5]
{$x$ / 1 ,$f(x)$ /1 }%
{$v_1$ , $v_2$ , $v_3$ }%
\tkzTabLine{ z, , z , ,z }
\end{tikzpicture}
\end{document}

• You really think that the documentation is in German? ;-) It's French, actually! – user31729 Jul 10 '16 at 5:58
• @ChristianHupfer: Ha Ha Ha:-) Thanks for your clarification. – Sisabe Jul 10 '16 at 6:04
• What do you mean by "enlarge the zeros" ? – Salim Bou Jul 10 '16 at 15:16
• @salimbou: I want the zeros to be a little bigger. – Sisabe Jul 10 '16 at 15:29

You can for example patch the command \tkzTabLine using xpatch package, and change the line of code

\node at (Z\thetkz@cnt@impair\thetkz@cnt@lg){$0$};


With

\node[font=\Large] at (Z\thetkz@cnt@impair\thetkz@cnt@lg){$0$};


To change the size of font inside node containing zeros

Code

\documentclass{article}
\usepackage{xpatch}
\usepackage{tkz-tab}

\makeatletter
\xpatchcmd{\tkzTabLine}
{\node at (Z\thetkz@cnt@impair\thetkz@cnt@lg){$0$};} % search
{\node[font=\Large] at (Z\thetkz@cnt@impair\thetkz@cnt@lg){$0$};} % replace
{}{}
\makeatother

\begin{document}
\begin{tikzpicture}
\tkzTabInit[espcl=1.5]
{$x$ / 1 ,$f(x)$ /1 }%
{$v_1$ , $v_2$ , $v_3$ }%
\tkzTabLine{z , , z , ,z }

\end{tikzpicture}
\end{document}


Result