Error Missing number, treated as zero. \begin{document} appearing on beamer

beamer

Today I'm having problems with beamer.

This is my code:

\documentclass[11pt]{beamer}
\date{\year}
\usetheme{Madrid}
\begin{document}
    \begin{frame}
            \begin{block}
                \centering
                \textbf{Título}
            \end{block}
    \end{frame}
\end{document}

But it shows a error message: "Missing number, treated as zero. \begin{document}", on the line 4.

This error appears when I try to change the theme. When I don't put the \usetheme{} it works perfectly.

Someone knows what is happening?

Best Answer

\year is an internal register you want

\date{\the\year}

To get the typeset number

Related Solutions

[Tex/LaTex] line 66: Missing number, treated as zero \end{frame}

The second column environment in the second big frame of the posted code misses the width argument. Here's a simplified version with the width provided:

\documentclass{beamer}

\begin{document}

 \begin{frame}
   \frametitle{Experimental evidence of BEC}
   \begin{columns}
   \begin{column}{0.6\textwidth}
      \begin{itemize}
       \item Kapitsa, Allen and Misener discovered He-4 $\Rightarrow$ superfluid, at $T < 2.17$  K ($\lambda$ point).
       \item First "pure" $BEC$ was created by Cornell and Wieman $\sim$ dilute vapor $\sim 2000$ Rb-87 atoms $T < 170 \ nK$.
       \item $BEC$ applies to quasiparticles (solids). A magnon in an antiferromagnet (S=1)-Bose–Einstein statistics.
       \end{itemize}
   \end{column}
   \begin{column}{0.4\textwidth}
    \begin{center}
      Test text for the second column.
     \end{center}
   \end{column}
   \end{columns}
 \end{frame}

\end{document}

[Tex/LaTex] Numerical conditional within tikz keys

I am definitely unfamiliar with both beamer and tikz (do not quite get what the \only are supposed to do) but perhaps this could go in the direction you want:

\documentclass{beamer}
\usepackage{tikz}
\usetikzlibrary{chains}
\newcounter{count}

% helper macro:
\long\def\GobToSemiColon #1;{}

\newcommand\myPicture{
\begin{tikzpicture}
  \begin{scope}[start chain = going below]
  \ifnum\value{count}<1 \expandafter\GobToSemiColon\fi
  \ifnum\value{count}>3 \expandafter\GobToSemiColon\fi
  \node[draw, rectangle, on chain] {display only when counter is between
    1 and 3};

  \ifnum\value{count}>-1 \expandafter\GobToSemiColon\fi
  \node[draw, rectangle, on chain] {display only when counter is
    negative}; 

  \ifnum\value{count}<100 \expandafter\GobToSemiColon\fi
  \ifnum\value{count}>200 \expandafter\GobToSemiColon\fi  
  \node[draw, rectangle, on chain] {display only if counter is between
    100 and 200};

  \ifnum\value{count}<3 \expandafter\GobToSemiColon\fi
  \ifnum\value{count}>20 \expandafter\GobToSemiColon\fi
  \node[draw, circle, on chain] {only when counter is in the range 3 to 20};
  \end{scope}
\end{tikzpicture}
}

\begin{document}
\begin{frame}
\only{\setcounter{count}{-3}\myPicture}
\only{\setcounter{count}{105}\myPicture}
\only{\setcounter{count}{39}\myPicture}
\only{\setcounter{count}{2}\myPicture}
\only{\setcounter{count}{5}\myPicture}
\end{frame}
\end{document}

beamer

Best Answer

Related Solutions

[Tex/LaTex] line 66: Missing number, treated as zero \end{frame}

[Tex/LaTex] Numerical conditional within tikz keys

Related Question