How Do I Add Comments on an Algorithm Environment in Latex?
I Am Using Latex to Write a Pseudo Algorithm Using the Algorithm Package. I Want to Add Comments on the Code in a Way That They Get Aligned. the Following...
I am using LaTeX to write a pseudo algorithm using the algorithm package. I want to add comments on the code in a way that they get aligned. The following lines are what I could do, but the comments are not aligned. How do I do that?
\begin{algorithm}[H]
\caption{}
\label{}
\begin{tabbing}
quad \=\quad \=\quad \kill
\keyw{for} each a $\in$ A \keyw{do} \\
\> command; \qquad \qquad $\blacktriangleright$ add text here \\
\keyw{end} \\
\end{tabbing}
\end{algorithm}
The comments are like that:
one comment here\\
other here\\
other here\\
How do I align them?
1 Answer
If you're setting algorithms, use a dedicated pseudo code setting package. Here's one using algorithmicx's algpseudocode:
\documentclass{article}
\usepackage{algorithm,algpseudocode}
\algnewcommand{\algorithmicforeach}{\textbf{for each}}
\algdef{SE}[FOR]{ForEach}{EndForEach}[1]
{\algorithmicforeach\ #1\ \algorithmicdo}% \ForEach{#1}
{\algorithmicend\ \algorithmicforeach}% \EndForEach
\begin{document}
\begin{algorithm}
\caption{An algorithm}
\begin{algorithmic}[1]
\ForEach{$a \in A$}%
\State command \algorithmiccomment{This is a comment}
\State another command \algorithmiccomment{This is another comment}
\EndForEach
\end{algorithmic}
\end{algorithm}
\end{document}
algpseudocode already defines \ForAll. However, in the above code, I copied that definition into \ForEach. Comments can be added using \algorithmiccomment. Formatting and placement can be modified.
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