# Can I multiply a table with some scalar value say

I have a table and I want to multiply the table with some scalar value say 6 is it possible to do in latex?

\documentclass
\usepackage{multirow}
\begin{table}[]
\begin{tabular}{ccccccccc}
\hline
\multirow{3}{*}{$\rho_{r}=\frac{\rho_{1}}{\rho}$} & \multicolumn{8}{c}{Symmetric non-dimensional frequencies}                                                                             \\ \cline{2-9}
& \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{2}$} & \multicolumn{2}{c}{$\beta_{3}$} & \multicolumn{2}{c}{$\beta_{4}$} \\ \cline{2-9}
& DROM           & FEM            & DROM           & FEM            & DROM           & FEM            & DROM           & FEM            \\ \hline
1                                                 & 1.213          & 1.212          & 2.208          & 2.201          & 3.141          & 3.123          & 3.602          & 3.569          \\ \hline
10                                                & 1.213          & 1.212          & 2.208          & 2.201          & 3.141          & 3.123          & 3.602          & 3.567          \\ \hline
1e2                                               & 1.213          & 1.213          & 2.208          & 2.208          & 3.141          & 3.123          & 3.602          & 3.249          \\ \hline
1e3                                               & 1.213          & 1.212          & 2.208          & 1.853          & 3.141          & 2.203          & 3.602          & 3.123          \\ \hline
\multirow{3}{*}{$\rho_{r}=\frac{\rho_{1}}{\rho}$} & \multicolumn{8}{c}{Anti-symmetric non-dimensional frequencies}                                                                        \\ \cline{2-9}
& \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{1}$} \\ \cline{2-9}
& DROM           & FEM            & DROM           & FEM            & DROM           & FEM            & DROM           & FEM            \\ \hline
1                                                 & 0.762          & 0.761          & 1.492          & 1.491          & 2.306          & 2.298          & 3.141          & 3.123          \\ \hline
10                                                & 0.634          & 0.633          & 1.304          & 1.302          & 2.232          & 2.225          & 3.141          & 3.123          \\ \hline
1e2                                               & 0.398          & 0.397          & 1.225          & 1.223          & 2.212          & 2.204          & 3.141          & 3.123          \\ \hline
1e3                                               & 0.226          & 0.226          & 1.215          & 1.215          & 2.209          & 2.203          & 3.141          & 2.623          \\ \hline
\end{tabular}
\end{table}


\end{document}

• Could you please consider providing a compilable code. The document class, \begin{document} and \end{document} are missing. – Schrödinger's cat Sep 22 at 5:18

Yes, of course. With collcell. All one needs to do is to install some parser that parses and evaluates the entries, with my choice being \pgfmathparse.

\documentclass{article}
\usepackage[margin=1in]{geometry}
\usepackage{multirow}
\usepackage{collcell}
\usepackage{pgf}
\newcolumntype{E}{>{\collectcell\usermacro}c<{\endcollectcell}}
\newcommand\usermacro[1]{\pgfmathparse{6*#1}\pgfmathprintnumber\pgfmathresult}

\begin{document}
\begin{table}[htb]
\centering\pgfkeys{/pgf/number format/fixed,
/pgf/number format/fixed zerofill,
/pgf/number format/precision=3}
\begin{tabular}{cEEEEEEEE}
\hline
\multirow{3}{*}{$\rho_{r}=\frac{\rho_{1}}{\rho}$} & \multicolumn{8}{c}{Symmetric non-dimensional frequencies}                                                                             \\ \cline{2-9}
& \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{2}$} & \multicolumn{2}{c}{$\beta_{3}$} & \multicolumn{2}{c}{$\beta_{4}$} \\ \cline{2-9}
& \multicolumn{1}{c}{DROM}  & \multicolumn{1}{c}{FEM}            & \multicolumn{1}{c}{DROM}           & \multicolumn{1}{c}{FEM}            & \multicolumn{1}{c}{DROM}           & \multicolumn{1}{c}{FEM}            & \multicolumn{1}{c}{DROM}           & \multicolumn{1}{c}{FEM}            \\ \hline
1                                                 & 1.213          & 1.212          & 2.208          & 2.201          & 3.141          & 3.123          & 3.602          & 3.569          \\ \hline
10                                                & 1.213          & 1.212          & 2.208          & 2.201          & 3.141          & 3.123          & 3.602          & 3.567          \\ \hline
1e2                                               & 1.213          & 1.213          & 2.208          & 2.208          & 3.141          & 3.123          & 3.602          & 3.249          \\ \hline
1e3                                               & 1.213          & 1.212          & 2.208          & 1.853          & 3.141          & 2.203          & 3.602          & 3.123          \\ \hline
\multirow{3}{*}{$\rho_{r}=\frac{\rho_{1}}{\rho}$} & \multicolumn{8}{c}{Anti-symmetric non-dimensional frequencies}                                                                        \\ \cline{2-9}
& \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{1}$} & \multicolumn{2}{c}{$\beta_{1}$} \\ \cline{2-9}
& \multicolumn{1}{c}{DROM}  & \multicolumn{1}{c}{FEM}            & \multicolumn{1}{c}{DROM}           & \multicolumn{1}{c}{FEM}            & \multicolumn{1}{c}{DROM}           & \multicolumn{1}{c}{FEM}            & \multicolumn{1}{c}{DROM}           & \multicolumn{1}{c}{FEM}            \\ \hline
1                                                 & 0.762          & 0.761          & 1.492          & 1.491          & 2.306          & 2.298          & 3.141          & 3.123          \\ \hline
10                                                & 0.634          & 0.633          & 1.304          & 1.302          & 2.232          & 2.225          & 3.141          & 3.123          \\ \hline
1e2                                               & 0.398          & 0.397          & 1.225          & 1.223          & 2.212          & 2.204          & 3.141          & 3.123          \\ \hline
1e3                                               & 0.226          & 0.226          & 1.215          & 1.215          & 2.209          & 2.203          & 3.141          & 2.623          \\ \hline
\end{tabular}
\end{table}
\end{document}


• Thanks for your time and effort. I learned something new in latex. – vijay Sep 22 at 5:25
• I have tried the same with a different table, now I am getting an error. Package PGF math error. I have increased the number of rows by two, and I tried using your code – vijay Sep 22 at 5:53
• @vijay Did you add rows that have non-numerical values? If so, you need to use \multicolumn{1}{c}{...} like e.g. \multicolumn{1}{c}{DROM} for those cells with non-numerical entries. (Of course, you can use l etc. instead of c, but not E. – Schrödinger's cat Sep 22 at 5:56
• Can we change the color of the beta 4 to red when the ratio rho =1 – vijay Sep 22 at 8:02
• @vijay Please ask a new question for this. Asking questions is free (and I actually do not understand your follow-up question). – Schrödinger's cat Sep 22 at 10:41