pstrickstables
I´m creating a table for simplex, and I want to create a circle around a number in a table.
How can I make this in LaTeX?
I use PSTricks, but I prefer don´t create an image and a table/tabular inside that image.
I don´t know if in PSTricks, I can create a circle anywhere in the page or only in the rectangle in \psspicture (lower left)(upper right).
Use of adjustwidth from changepage package. Within an adjustwidth environment the left and right margins can be adjusted. The environment takes two required length arguments:
\begin{adjustwidth}{<leftmargin>}{<rightmargin>} ... \end{adjustwidth}
A positive length value will increase the relevant margin (shortening the text lines) while a negative length value will decrease the margin (lengthening text lines). An empty length argument means no change to the margin. At the end of the environment the margins revert to their original values
Code
\documentclass[fontsize=11pt]{scrartcl}
\usepackage{amsmath,amssymb,amsfonts,amsthm,url,hyperref}
\usepackage{changepage}
\usepackage[showframe]{geometry}
\begin{document}
\begin{adjustwidth}{0cm}{0cm}
\begin{tabular}{ | p{3cm} | p{3cm} | p{3cm} | p{2cm} | p{2cm} | p{2cm} | }
\hline
abcdabcd abcd & abcdabcd abcd & abcdabcd abcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
\end{tabular}
\end{adjustwidth}
\bigskip
\begin{adjustwidth}{-1cm}{0cm}
\begin{tabular}{ | p{3cm} | p{3cm} | p{3cm} | p{2cm} | p{2cm} | p{2cm} | }
\hline
abcdabcd abcd & abcdabcd abcd & abcdabcd abcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
\end{tabular}
\end{adjustwidth}
\bigskip
\begin{adjustwidth}{-2cm}{0cm}
\begin{tabular}{ | p{3cm} | p{3cm} | p{3cm} | p{2cm} | p{2cm} | p{2cm} | }
\hline
abcdabcd abcd & abcdabcd abcd & abcdabcd abcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd & abcdabcd \\ \hline
\end{tabular}
\end{adjustwidth}
\end{document}
First with tabularx, you can make a column right aligned by
>{\raggedleft\arraybackslash}X
while X column type takes care of the column width automatically.
\documentclass{article}
\usepackage{tabularx}
\usepackage{showframe} %% jusr for demo
\begin{document}
\noindent
\begin{tabularx}{\textwidth}{X>{\raggedleft\arraybackslash}X}
Left & Right\\
Left & Right
\end{tabularx}
\end{document}
Next with tabular*. Here we use lr columns but the space in between is filled with a total width equal to \textwidth.
\documentclass{article}
\usepackage{array}
\usepackage{showframe} %% jusr for demo
\begin{document}
\noindent
\begin{tabular*}{\textwidth}{l@{\extracolsep{\fill}}r}
Left & Right\\
Left & Right
\end{tabular*}
\end{document}
With p column type and tabular, we have to calculate the width of columns and then issue \raggedleft for second column.
\documentclass{article}
\usepackage{array}
\usepackage{showframe} %% jusr for demo
\begin{document}
\noindent
\begin{tabular}{p{\dimexpr0.5\textwidth-2\tabcolsep\relax}
>{\raggedleft\arraybackslash}p{\dimexpr0.5\textwidth-2\tabcolsep\relax}}
Left & Right\\
Left & Right
\end{tabular}
\end{document}
Best Answer
As far as I understand, a number for you is not
but rather 1, 2, 3, ...
Then one of solutions is a
pifontpackage, where circled numbers are obtained by\ding{172}--\ding{181},\ding{182}--\ding{191},\ding{192}--\ding{201}, and\ding{202}--\ding{211}.