1

I'm getting this error:

! Missing $ inserted.
<inserted text> 
                $
l.557                            & V_
                                     n \le 1 kV & 1 kV \le V_n \le 69 kV & 6...

? ! Missing $ inserted.
<inserted text> 
                $
l.557                            & V_n \le 1 kV &
                                                  1 kV \le V_n \le 69 kV & 6...

? 

And this is my table, can anyone help me where should i put the $? Latex is already doing it by itself (i guess), but i really want to know whats wrong here.

\begin{table}[h!]
\caption{Valores de referência para as distorções harmônicas totais de tensão.}
\begin{center}
\label{limites_distorcao}
\begin{tabular}{|c|c|c|c|}
\hline
\multirow{2}{*}{Indicador} & \multicolumn{3}{c|}{Tensão Nominal do Barramento}                                                          \\ \cline{2-4} 
                           & V_n \le 1 kV & 1 kV \le V_n \le 69 kV & 69 kV \le V_n \le 230 kV \\ \hline
$DHTvI_i$                   & 7,5\%                  & 6\%                                 & 4\%                                         \\ \hline
$DHTv3_i$                   & 6,5\%                  & 5\%                                 & 3\%                                         \\ \hline
\end{tabular}
\end{center}
\end{table}
  • 2
    V_n \le 1 kV should be in math mode – David Carlisle Jan 7 at 12:00
  • 2
    $V_n$ and $\le$ -> Math mode. Please read an introduction to LaTeX. – Johannes_B Jan 7 at 12:01
2

You are missing the dollar signs for the math code V_n and \le which causes the error (as already stated by other users in the comments). Inside a tabular every cell is an own box and you need to enable math mode for each one.

In addition to that you have some other issues in your code:

Here a version of your code with the improvements added:

\documentclass{article}
\usepackage{blindtext}% for example text here only
\usepackage{multirow}
\usepackage{caption} % proper table caption distance
\usepackage{booktabs} % book quality table lines
\usepackage{siunitx} % format SI units
\sisetup{output-decimal-marker = {,}} % use comma as decimal marker

\begin{document}
\blindtext

\begin{table}[h!]
\caption{Valores de referência para as distorções harmônicas totais de tensão.}
\centering % don't use {center} environment, which is for text paragraphs only and add unwanted vertical space before and after
\label{limites_distorcao}
\begin{tabular}{cccc}
\toprule
\multirow{2}{*}{Indicador} & \multicolumn{3}{c}{Tensão Nominal do Barramento}                                                          \\[.25ex]  
                           & $V_n \le \SI{1}{\kilo\volt} $ & $ \SI{1}{\kilo\volt} \le V_n \le \SI{69}{\kilo\volt} $ & $ \SI{69}{\kilo\volt} \le V_n \le \SI{230}{\kilo\volt} $\\ \midrule
$DHTvI_i$                  & \SI{7,5}{\%}                  & \SI{6}{\%}                                 & \SI{4}{\%}                                         \\ 
$DHTv3_i$                  & \SI{6,5}{\%}                  & \SI{5}{\%}                                 & \SI{3}{\%}                                         \\ 
\bottomrule
\end{tabular}

\end{table}

\blindtext

\end{document}

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.