# Trouble with tables; can't find the missing $So I have made a table in LaTeX, containing certain values of an angle theta and a radius r. Of course, somewhere I'm missing a $. I have used the table generator from the website http://www.tablesgenerator.com/; this is the code

\begin{table}[]
\centering
\caption{My caption}
\label{my-label}
\begin{tabular}{llllllllllllll}
\theta & 0 & $\frac{\pi}{9}$ & $\frac{\pi}{6}$      & $\frac{2\pi}{9}$     & $\frac{\pi}{3}$ & $\frac{4\pi}{9}$     & $\frac{\pi}{2}$      & $\frac{5\pi}{9}$ & $\frac{2\pi}{3}$ & $\frac{7\pi}{9}$ & $\frac{5\pi}{6}$                           & $\frac{8\pi}{9}$                           & $\pi$ \\ \cline{13-13}
r      & 0 & $\frac{1}{2}$   & $\frac{\sqrt{2}}{2}$ & $\frac{\sqrt{3}}{2}$ & 1               & $\frac\{sqrt{3}}{2}$ & $\frac{\sqrt{2}}{2}$ & $\frac{1}{2}$    & 0                & $\frac{-1}{2}$   & \multicolumn{1}{l|}{$-\frac{\sqrt{2}}{2}$} & \multicolumn{1}{l|}{$\frac{-\sqrt{3}}{2}$} & -1    \\ \cline{13-13}
\end{tabular}
\end{table}


I've looked at it for hours and think I'm starting to go crazy.
Anyone wanna be crazy with me and spot what's missing?

• \theta should be $\theta$ ... (first table cell). welcome to tex.se – Zarko Aug 3 '17 at 14:50
• $\frac\{sqrt{3}}{2}$ is wrong! – TeXnician Aug 3 '17 at 14:50
• \theta is allowed only in math mode – koleygr Aug 3 '17 at 14:50
• wow, thanks guys, helped me out tremendously, I've been staring at the screen too long. Cheers! – Paul Heinemans Aug 3 '17 at 15:02

• Use an array environment instead of a tabular environment. array environments are designed to contain primarily math-mode material. Making the switch will allow you do get rid of 42 [!] $ signs, significantly de-cluttering the code. • Use an \fbox instruction to encase the second-to-last entry in the second row in rectangular gridlines. Don't use two \cline directives and two \multicolumn{1}{}{} "wrappers". • \frac\{sqrt{3}}{2} must throw a syntax error. Presumably, it should be \frac{\sqrt{3}}{2}. \documentclass{article} \begin{document} \begin{table} \setlength\fboxsep{1pt} % default value: 3pt \centering \caption{My caption} \label{my-label}$\begin{array}{@{}*{14}{c}@{}}
& \frac{-\sqrt{2}}{2} & \fbox{$\frac{-\sqrt{3}}{2}$} & -1 \\
\end{array}$\end{table} \end{document}  • If you happen to load the amsmath package, you could replace \fbox{$\frac{-\sqrt{3}}{2}\$} with \boxed{\tfrac{-\sqrt{3}}{2}}. – Mico Aug 6 '17 at 19:35