Variation table

Question

I have installed the package tkz-tab to make sign and variation tables of a function. Signs are okay but when I try to make a variation table, for example like this:

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[czech]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tkz-tab} %loads tikz

\begin{document}
\begin{tikzpicture}
   \tkzTabInit{$x$ / 1 , $f(x)$ / 2}{$-\infty$, $-5$, $-3$, $2$, $+\infty$}
   \tkzTabVar{-/ $-\infty$, +C/ $0$, +H/ $0$, D-/ $-10$, +/ $+\infty$}
\end{tikzpicture}
\end{document}

It writes:

Package pgf error: No shape named F11 is known. See the pgf package for details.

What should I do?

Answer 1

New answer

Disabling the - character shorhand with the \shorthandoff macro in the babel package makes it work.

\documentclass[10pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[czech]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tkz-tab} %loads tikz

\begin{document}
\shorthandoff{-}
\begin{tikzpicture}
   \tkzTabInit{$x$ / 1 , $f(x)$ / 2}{$-\infty$, $-5$, $-3$, $2$, $+\infty$}
   \tkzTabVar{-/ $-\infty$, +C/ $0$, +H/ $0$, D-/ $-10$, +/ $+\infty$}
\end{tikzpicture}
\shorthandon{-}
\end{document}

Old answer

It works by adding tikz's babel library: \usetikzlibrary{babel}

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[czech]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tkz-tab}
\usetikzlibrary{babel}
\begin{document}
\begin{tikzpicture}
   \tkzTabInit{$x$ / 1 , $f(x)$ / 2}{$-\infty$, $-5$, $-3$, $2$, $+\infty$}
   \tkzTabVar{-/ $-\infty$, +C/ $0$, +H/ $0$, D-/ $-10$, +/ $+\infty$}
\end{tikzpicture}
\end{document}

Answer 2

You have the solution ... Your problem appears with babel and the option czech. You have three solutions. The best \usetikzlibrary{babel} or you can avoid using babel and finally another solution is to use lualatex with polyglossia.

In the code below, I used the `help' option to show you all the nodes created by my package. This allows you to customize the table easily.

% !TEX TS-program = lualatex
\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage{polyglossia}
\setmainlanguage{czech}
\usepackage[T1]{fontenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{tkz-tab}
\begin{document}

\begin{tikzpicture}
   \tkzTabInit[help]{$x$ / 1 , $f(x)$ / 2}{$-\infty$, $-5$, $-3$, $2$, $+\infty$}
   \tkzTabVar{-/ $-\infty$, +C/ $0$, +H/ $0$, D-/ $-10$, +/ $+\infty$}
\end{tikzpicture}
\end{document}

You can like Black Mild use xscale and yscale

\begin{tikzpicture}[yscale=.5,xscale=.8]
\tkzTabInit{$x$ / 1 ,$f(x)$ / 2}{$-\infty$, $-5$, $-3$, $2$, $+\infty$}
\tkzTabVar{-/ $-\infty$, +C/ $0$, +H/ $0$, D-/ $-10$, +/ $+\infty$}
\end{tikzpicture}

You can also add style like in TikZ because it's Tikz behind tkz-tab

\begin{tikzpicture}[yscale=.5,xscale=.8]
  \tikzset{h style/.append style = {%
 pattern=north east lines,pattern color=purple}}
\tkzTabInit{$x$ / 1 ,$f(x)$ / 2}{$-\infty$, $-5$, $-3$, $2$, $+\infty$}
\tkzTabVar{-/ $-\infty$, +C/ $0$, +H/ $0$, D-/ $-10$, +/ $+\infty$}
\end{tikzpicture}

Answer 3

In case one likes plain TikZ. I adjust a bit the positions of nodes 0 and -10. Use xscale and yscale as you think fit.

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{patterns}
\begin{document}
\begin{tikzpicture}[yscale=.8,xscale=1.75]
\begin{scope}[shift={(-.5,.5)}]
\fill[pattern=north east lines,pattern color=violet] (3.5,-1) rectangle +(1,-3);
\draw (0,0) rectangle +(6,-4) (0,-1)--+(0:6) (1,0)--+(-90:4);
\draw[gray] (2.5,-1)--+(-90:3) (3.5,-1)--+(-90:3) (4.5,-1)--+(-90:3);
\end{scope}
\path
(0,0)    node{$x$}          % <<< line 1
++(0:1)  node{$-\infty$}
++(0:1)  node{$-5$}
++(0:1)  node{$-3$}
++(0:1)  node{$2$}
++(0:1)  node{$+\infty$};
\path[nodes={fill=white,inner sep=2pt}]
(0,-2)   node{$f(x)$}          % <<< line 2
++(0:1)  +(-90:1) node (A) {$-\infty$}
++(0:1)  +(90:.5) node (B) {$0$}
++(0:1)  +(90:.5) node (C) {$0$}
++(0:1)  +(-90:.5) node (D) {$-10$}
++(0:1)  +(90:1) node (E) {$+\infty$};
\draw[-stealth,blue] (A)--(B);
\draw[-stealth,blue] (B)--(C);
\draw[-stealth,blue] (D)--(E);
\end{tikzpicture}
\end{document}