[Tex/LaTex] Algorithmicx multiple statements per line aligned over all lines

algorithmicxalgorithms

I would like to put a <- b and e <- f, in parallel on a single line in an algorithmicx environment. I want the same with c <- d and g <- h. Then I want to align both lines. The output shouod look like this.

1.    a <- b            e <- f
2.    c <- d            g <- h

This is the code I have now:

\begin{algorithm}
\begin{algorithmic}[1]
\Procedure{Test}{}
    \State{$a \gets b$}
    \State{$e \gets f$}
    \State{$c \gets d$}
    \State{$g \gets h$}
\EndProcedure
\end{algorithmic}
\end{algorithm}

Does anyone know how to do this? Could I use the multicolumn environment perhaps?

Best Answer

You can define a new command \BiState which takes two arguments

\newcommand{\BiState}[2]{%
  \State{\makebox[2cm]{#1\hfill}#2}%
  }

and use it like this

\documentclass{article}
\usepackage{algorithm}
\usepackage{algpseudocode}

\newcommand{\BiState}[2]{%
  \State{\makebox[2cm]{#1\hfill}#2}%
  }

\begin{document}

\begin{algorithm}
\begin{algorithmic}[1]
\Procedure{Test}{}
    \BiState{$a \gets b$}{$e \gets f$}
    \BiState{$c \gets d$}{$g \gets h$}
\EndProcedure
\end{algorithmic}
\end{algorithm}

\end{document}

Result

enter image description here

Adjust 2cm in its definition to the value that better fits your requirements.

Related Solutions

[Tex/LaTex] Avoid putting statements on the same line with algorithmicx

This was perhaps a status-by-design choice to allow people to choose between having \Return be on the same line with other statements or be placed on its own. To have it be placed on its own by default add

\algrenewcommand\Return{\State \algorithmicreturn{} }%

to your document preamble.

enter image description here

\documentclass[a4paper,10pt]{article}
\usepackage{algorithm}% http://ctan.org/pkg/algorithms
\usepackage[noend]{algpseudocode}% http://ctan.org/pkg/algorithmicx
\algrenewcommand\Return{\State \algorithmicreturn{} }%
\begin{document}
\begin{algorithm}
  \caption{test di Fermat}\label{alg:test-fermat}
  \begin{algorithmic}[1]
    \Procedure{testFermat}{$n, prove$}
      \Repeat
        \State{$a \gets$ numero casuale tra 2 e $n-1$}
        \If{$a^n \not\equiv a \bmod n$}
          \Return composto
        \EndIf
        \State{$prove \gets prove - 1$}
      \Until{$prove > 0$}
      \Return forse primo
    \EndProcedure
  \end{algorithmic}
\end{algorithm}
\end{document}

[Tex/LaTex] Indentation of continued lines in algorithmicx

Set the paragraph \hangindent:

enter image description here

\documentclass{article}
\usepackage{algorithm,algpseudocode}% http://ctan.org/pkg/{algorithms,algorithmicx}

\begin{document}

\begin{algorithmic}
  %\raggedright
  \State Define \texttt{N\_crf} as the number of points on the circumference 
    of the hyperstreamline, which will define its cross-sectional area at each~$r$
  \For {$n = 1$ : number of tracts}
  \State \parbox[t]{\dimexpr\linewidth-\algorithmicindent\relax}{%
    \setlength{\hangindent}{\algorithmicindent}%
      define N\_crf points creating a unit circle around $r(n,i)$, in the plane 
      perpendicular to $t(n,i)$.}\strut
  \EndFor
\end{algorithmic}

\end{document}

You could define yourself a \hangparbox:

\newcommand{\hangparbox}[3][t]{\parbox[#1]{\dimexpr#2}{%
  \setlength{\hangindent}{\algorithmicindent}#3}}

Another crude method to obtain this would be to insert and remove an \algorithmicindent before/after the \parbox:

\State \hspace*{\algorithmicindent}\parbox[t]{\dimexpr\linewidth-\algorithmicindent}{%
  \hspace*{-\algorithmicindent}
  %...
  }

This may come in handy when dealing with deeply-nested parts of your algorithm.

Best Answer

Related Solutions

[Tex/LaTex] Avoid putting statements on the same line with algorithmicx

[Tex/LaTex] Indentation of continued lines in algorithmicx

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