[Tex/LaTex] Add the word “Algorithm” before each entry in the List of Algorithms

algorithmstable of contents

I'm trying to add the word "Algorithm" before each entry in the List of Algorithms (because of unavoidable thesis guidelines).

I saw similar questions but the solutions listed there don't work for me. I'm not sure about reopening those questions, hence posting it separately. Apologize if that's not the right etiquette.

Is it possible to change the way a list of algorithms is generated to include the word "Algorithm" before each element in the list? (I'm using "algorithm" package instead of "algorithm2e")

Add algorithm label to list of algorithms (not sure if solutions listed there require other packages as listed solutions don't work for me)

Current output:

List of Algorithms
1 Optimization . . . . . . . . 3

Desired output:

List of Algorithms
Algorithm 1 Optimization . . . . . . . . 3

Here's a simplified code sample that illustrates the issue. Your help is much appreciated. Please let me know how to get desired behavior for this sample.

\documentclass[letter,10pt]{book}                                                                                                                                                                             
\usepackage[utf8x]{inputenc}

\usepackage[breaklinks]{hyperref}
\usepackage{algorithm}
\usepackage{algorithmic}

\title{Sample book}
\begin{document}
\listofalgorithms

\chapter{Sample}
% Outline
\begin{algorithm}[!hbt]
    \centering
    \caption{Optimization}\label{alg:pso}
    \begin{algorithmic}[1]
        \STATE \textit{GenerateInitialPopulation}(pop)
        \FOR {particle $ \leftarrow $ 1 \textit{to} numParticles}
          \STATE \textit{Evaluate}(particle)
        \ENDFOR
    \end{algorithmic}
\end{algorithm}

\end{document}

Best Answer

The following piece of code will insert Algorithm~ before each number of the algorithm in the List of Algorithms (LoA):

\begingroup
\let\oldnumberline\numberline
\renewcommand{\numberline}{Algorithm~\oldnumberline}
\listofalgorithms
\endgroup

It redefines the \numberline macro that inserts and sets the algorithm number into the LoA. For a good discussion on the meanings and placement/usage of these macros, read the tocloft package documentation (section 1.1 LaTeX's methods). Bracing (or grouping using \begingroup...\endgroup) localizes the scope so it does not affect \numberline used by other contents structures. Here's the full code that redefines \listofalgorithms so it can be cleanly used inside your document body:

\documentclass{book}
\usepackage[breaklinks]{hyperref}
\usepackage{algorithm,algorithmic}

\let\oldlistofalgorithms\listofalgorithms
\renewcommand{\listofalgorithms}{%
  \begingroup%
  \let\oldnumberline\numberline%
  \renewcommand{\numberline}{Algorithm~\oldnumberline}%
  \oldlistofalgorithms%
  \endgroup}
\begin{document}

\listofalgorithms

\chapter{Sample}
% Outline
\begin{algorithm}[!hbt]
  \centering
  \caption{Optimization}\label{alg:pso}
  \begin{algorithmic}[1]
    \STATE \textit{GenerateInitialPopulation}(pop)
    \FOR {particle $ \leftarrow $ 1 \textit{to} numParticles}
      \STATE \textit{Evaluate}(particle)
    \ENDFOR
  \end{algorithmic}
\end{algorithm}

\end{document}

If you wish to avoid the horizontal space introduced between the margin and the algorithm contents entries, you can use the following redefinition of \listofalgorithms:

\makeatletter
\renewcommand{\listofalgorithms}{%
  \begingroup%
  \let\oldnumberline\numberline%
  \let\old@dottedtocline\@dottedtocline
  \renewcommand{\@dottedtocline}[5]{\old@dottedtocline{##1}{0pt}{##3}{##4}{##5}}%
  \renewcommand{\numberline}{Algorithm~\oldnumberline}%
  \oldlistofalgorithms%
  \endgroup}
\makeatother

The above update of \@dottedtocline changes the default 1.5em spacing usually placed in the second argument with 0pt.

Related Solutions

[Tex/LaTex] Is it possible to change the way a list of algorithms is generated to include the word “Algorithm” before each element in the list

Isn't it obvious, that below the heading List of Algorithms only algorithms follow? Why mention 20 times Algorithm again?

One could start by redefining the counter presentation like

\renewcommand*{\thealgocf}{Algorithm~\arabic{algocf}}

But the list of contents requires modification, this could be done with a package like tocloft or titletoc or tocbasic.

For consistency it may be following to do the same for figures, tables, sections and so on. That seems odd to me.

[Tex/LaTex] Adding word ‘Table’ before each entry in list of tables

You can use the chngcntr package to change the counter for figures and the one for the tables, and the tocloft package to add the words "Table" and "Figure" to the list of tables and figures. A little example:

\documentclass{report}
\usepackage{chngcntr}  
\usepackage{tocloft}
\usepackage{hyperref}

\counterwithout{figure}{chapter}
\counterwithout{table}{chapter}

\renewcommand{\cftfigpresnum}{Figure\ }
\renewcommand{\cfttabpresnum}{Table\ }

\newlength{\mylenf}
\settowidth{\mylenf}{\cftfigpresnum}
\setlength{\cftfignumwidth}{\dimexpr\mylenf+1.5em}
\setlength{\cfttabnumwidth}{\dimexpr\mylenf+1.5em}


\makeatletter
\newcommand\listoftablesandfigures{%
    \chapter*{List of Tables and Figures}%
    \phantomsection
\@starttoc{lof}%
\bigskip
\@starttoc{lot}}
\makeatother

\begin{document}
\listoftablesandfigures

\chapter{Test one}
\section{Test one one}

\begin{table}
  \caption{Test table one}
\end{table}

\begin{figure}
  \caption{Test figure one}
\end{figure}

\chapter{Test two}
\section{Test two two}

\begin{table}
  \caption{Test table two}
\end{table}

\begin{figure}
  \caption{Test figure two}
\end{figure}

\end{document}

Only the combined list of the resulting document is shown:

Best Answer

Related Solutions

[Tex/LaTex] Is it possible to change the way a list of algorithms is generated to include the word “Algorithm” before each element in the list

[Tex/LaTex] Adding word ‘Table’ before each entry in list of tables

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