algorithms
In an algorithm using the algorithmic package, I would like to display for some lines a special symbol (e.g. a +), instead of their line number. Is this possible?
Edit:
Here's a minimal working example.
\documentclass{article}
\usepackage{algorithm}
\usepackage{algorithmic}
\begin{document}
\begin{algorithm}[tb]
\caption{My algorithm}
\begin{algorithmic}[1]
\STATE{foo}
\STATE{bar}
\end{algorithmic}
\end{algorithm}
\end{document}
The command \hline works only inside tables. To draw a line about the whole width you can use the command \hrulefill.
\STATEstems from thealgorithmsbundle, while the more advanced and recentalgorithmicxpackage defines\State.
\documentclass{article}
\usepackage{algpseudocode}
\usepackage{algorithm}
\begin{document}
\begin{algorithm}
\caption{Caption}
\begin{algorithmic}
\State algorithm here
\\\hrulefill
\State part 2 here
\end{algorithmic}
\end{algorithm}
\end{document}
The result is:
If you want special line formating you can also use every other tool to draw a line. This is the simplest solution.
cleveref only claims to support a limited number of packages and algorithmic is not on that list. However, adding \setcounter{ALC@unique}{0} after the beginning of your algorithmic enviroments fixes the problem, i.e., writing
\begin{algorithmic}[1]
\setcounter{ALC@unique}{0}
\REQUIRE $x$ and $y$
etc.
I suggest you wrap this up in a new environment, so that you do not have to write it each time.
If you also want hyperref to behave properly, then I suggest packaging as follows
\documentclass[a4paper,final]{report}
\usepackage{algorithmic}
\usepackage{hyperref}
\usepackage{cleveref}
\Crefname{ALC@unique}{Line}{Lines}
\newcounter{myalg}
\AtBeginEnvironment{algorithmic}{\refstepcounter{myalg}}
\makeatletter
\@addtoreset{ALC@unique}{myalg}
\makeatother
\begin{document}
Test 1
\begin{algorithmic}[1]
\REQUIRE $x$ and $y$
\ENSURE $|x + y|$
\STATE $z = x + y$
\IF{$z<0$}
\RETURN $-z$\label{l1}
\ELSE
\RETURN $z$
\ENDIF
\end{algorithmic}
cref\{l1\}: \cref{l1}, ref\{l1\}: \ref{l1}
\vfill
Test 2
\begin{algorithmic}[1]
\REQUIRE $x$ and $y$
\ENSURE $|x - y|$
\STATE $z = x - y$
\IF{$z<0$}
\RETURN $-z$\label{l2}
\ELSE
\RETURN $z$
\ENDIF
\end{algorithmic}
cref\{l2\}: \cref{l2}, ref\{l2\}: \ref{l2}
\end{document}
Best Answer
The following seems to work:
In
algorithmic.sty, the command\ALC@lnois responsible to print the line number. The above code changes the command temporarily to just output+and then to reset itself.