[Tex/LaTex] stop bold in algorithmx

algorithmicxbold

I am using the algorithmx package:

http://mirrors.ibiblio.org/CTAN/macros/latex/contrib/algorithmicx/algorithmicx.pdf

The keywords such as "if", "while", "then", "else" "end if" etc. etc. all appear in bold font. I am looking for an easy "switch" to turn off the bold font "feature" of this package. Any help would be appreciated.

Best Answer

There is no such feature in algorithmicx (I suggest contacting the package author to customize this as a new package feature).

Take algpseudocode, for example. All the keywords are defined verbatim as \textbf{<keyword>}:

%
%      ***      KEYWORDS      ***
%
\algnewcommand\algorithmicend{\textbf{end}}
\algnewcommand\algorithmicdo{\textbf{do}}
\algnewcommand\algorithmicwhile{\textbf{while}}
\algnewcommand\algorithmicfor{\textbf{for}}
\algnewcommand\algorithmicforall{\textbf{for all}}
\algnewcommand\algorithmicloop{\textbf{loop}}
\algnewcommand\algorithmicrepeat{\textbf{repeat}}
\algnewcommand\algorithmicuntil{\textbf{until}}
\algnewcommand\algorithmicprocedure{\textbf{procedure}}
\algnewcommand\algorithmicfunction{\textbf{function}}
\algnewcommand\algorithmicif{\textbf{if}}
\algnewcommand\algorithmicthen{\textbf{then}}
\algnewcommand\algorithmicelse{\textbf{else}}
\algnewcommand\algorithmicrequire{\textbf{Require:}}
\algnewcommand\algorithmicensure{\textbf{Ensure:}}
\algnewcommand\algorithmicreturn{\textbf{return}}
\algnewcommand\textproc{\textsc}

You would have to redefine these to suit your needs in a very generic way. Alternatively, if you're willing to sacrifice all \textbf usages within the algorithmic environment, you can make \textbf a no-op by adding to your document preamble:

\usepackage{etoolbox}% http://ctan.org/pkg/etoolbox
\AtBeginEnvironment{algorithmic}{\let\textbf\relax}

Here is a minimal example showing the output with the above change:

enter image description here

\documentclass{article}
\usepackage{algorithm,algpseudocode,etoolbox}
\AtBeginEnvironment{algorithmic}{\let\textbf\relax}
\begin{document}

\begin{algorithm}
  \caption{Euclid’s algorithm}\label{euclid}
  \begin{algorithmic}[1]
    \Procedure{Euclid}{$a,b$}\Comment{The g.c.d.\ of $a$ and $b$}
      \State $r\gets a\bmod b$
      \While{$r\not=0$}\Comment{We have the answer if $r$ is $0$}
        \State $a\gets b$
        \State $b\gets r$
        \State $r\gets a\bmod b$
      \EndWhile\label{euclidendwhile}
      \State \textbf{return} $b$\Comment{The gcd is $b$}
    \EndProcedure
  \end{algorithmic}
\end{algorithm}

\end{document}

This is what the output would have looked like without the no-op addition/patch using etoolbox:

enter image description here

Related Solutions

[Tex/LaTex] Bold \varnothing

We can use another method to bold Greek letters and symbols that \mathbf doesn't work on, but this method doesn't work on \varnothing. However, it does work on \O and \emptyset.

\pmb was the only one to work on \varnothing but as barbara beeton pointed out it doesn't look that great. If you are okay with using \O or \emptyset, we can avoid the use of \pmb

\documentclass{article}
\usepackage{mathtools}
\usepackage{amssymb}
\newcommand{\bfs}[1]{\mbox{\boldmath$#1$}}
\begin{document}
\begin{alignat*}{4}                                                                 
  \varnothing & \qquad\bfs{\varnothing} & \qquad \mathbf{\varnothing}               
  & \qquad \pmb{\varnothing}\\                                                      
  \phi & \qquad\bfs{\phi} & \qquad \mathbf{\phi} & \qquad \pmb{\phi}\\              
  \Phi & \qquad\bfs{\Phi} & \qquad \mathbf{\Phi} & \qquad \pmb{\Phi}\\              
  \O & \qquad\bfs{\O} & \qquad \mathbf{\O} & \qquad \pmb{\O}\\                      
  \emptyset & \qquad\bfs{\emptyset} & \qquad \mathbf{\emptyset}                     
  & \qquad \pmb{\emptyset}                                                          
\end{alignat*}
\end{document}

enter image description here

Close up of \pmb

enter image description here

Close up of \newcommand which didn't work on \varnothing but works on the rest.

enter image description here

[Tex/LaTex] Algorithm as figure and without italic and bold formatting

Is this what you are trying to achieve?

enter image description here

This is the MWE:

\documentclass{article}
\usepackage[plain]{algorithm}
\usepackage{algpascal}

\begin{document}

\algrenewcommand\textkeyword{\textrm}
\algdef{SE}{For}{End}[2]{%
  \textkeyword{for} \(#1\) \textkeyword{to} \(#2\) \textkeyword{do begin}}{%
  \textkeyword{end}}

\begin{algorithm}
\begin{algorithmic}[1]
\State Assign an ordering $A_{1}, ..., A_{n}$ to the nonterminals of the grammar.
\For{i = 1}{n}
    \For{j = 1}{i-1}
    \State for each production of the form $A_{i} \rightarrow A_{j} \alpha$
    \End
\End
\end{algorithmic}
\caption{Paull's algorithm}
\end{algorithm}

\end{document}

Explanation

To match your first two requests, I've redefined the behavior of for to have an end statement by adding the lines:

\algdef{SE}{For}{End}[2]{%
  \textkeyword{for} \(#1\) \textkeyword{to} \(#2\) \textkeyword{do begin}}{%
  \textkeyword{end}}

To match your last request, it suffices to add the line:
```
\algrenewcommand\textkeyword{\textrm}
```
which redefines the font for keywords to be \textrm instead of \textbf.
In regards of your 3rd request, there are two ways.
- If you want the algorithm to behave as an algorithm, simply load the algorithm package with the option plain as in the above MWE:
```
\usepackage[plain]{algorithm}
```
- If you want the algorithm to behave as a figure, there is no need to load the algorithm package, simply insert the algorithmic environment inside a figure, i.e. replace the lines
```
\begin{algorithm}
\begin{algorithmic}[1]
...
\end{algorithmic}
\caption{Paull's algorithm}
\end{algorithm}
```
  with
```
\begin{figure}
\begin{algorithmic}[1]
...
\end{algorithmic}
\caption{Paull's algorithm}
\end{figure}
```
  and you will have

Addendum

This is the complete implementation of the algorithm in the figure:

\documentclass{article}
\usepackage[plain]{algorithm}
\usepackage{algpascal}

\begin{document}

\algrenewcommand\textkeyword{\textrm}
\algdef{SE}{For}{End}[2]{%
  \textkeyword{for} \(#1\) \textkeyword{to} \(#2\) \textkeyword{do begin}}{%
  \textkeyword{end}}
\algdef{SE}{ForEach}{End}[1]{%
  \textkeyword{for each} #1 \textkeyword{do begin}}{%
  \textkeyword{end}}

\begin{algorithm}
\begin{algorithmic}[1]
\State Assign an ordering $A_{1}, \dots, A_{n}$ to the nonterminals of the grammar.
\For{i := 1}{n}
    \For{j := 1}{i-1}
        \ForEach{production of the form $A_{i} \rightarrow A_{j} \alpha$}
            \State remove $A_{i} \rightarrow A_{j} \alpha$ from the grammar
            \ForEach{production of the form $A_{j} \rightarrow \beta$}
                \State add $A_{i} \rightarrow \beta\alpha$ to the grammar
            \End
        \End
    \End
    \State transform the $A_{i}$-productions to eliminate direct left recursion
\End
\end{algorithmic}
\caption{Paull's algorithm}
\end{algorithm}

\end{document}

enter image description here

There is the need to define a new command \ForEach:

\algdef{SE}{ForEach}{End}[1]{%
  \textkeyword{for each} #1 \textkeyword{do begin}}{%
  \textkeyword{end}}

Note that I've defined \ForEach so to take one "text" argument, because it seemed to me the best way to define it.

If you want it to take a "math" argument, then define it as

\algdef{SE}{ForEach}{End}[1]{%
  \textkeyword{for each} \(#1\) \textkeyword{do begin}}{%
  \textkeyword{end}}

and use it as follows (amsmath is needed for the command \text):

\ForEach{\text{production of the form }A_{i} \rightarrow A_{j} \alpha}

Best Answer

Related Solutions

[Tex/LaTex] Bold \varnothing

[Tex/LaTex] Algorithm as figure and without italic and bold formatting

Explanation

Addendum

Related Question