Change the algorithm enumeration in the algorithm2e package

Question

I would like to translate the algorithm enumeration into another language, it is always printed in English:

• Algorithm 1 [Title]
• Algorithm 2 [Title]
• ...

I am using the algorithm2e package.

Answer 1

With the algorithmic environment, you're probably using the algorithms bundle or possibly the algorithmicx package (both provide that environment). The algorithm environment's name is stored in \ALG@name that you can modify using \renewcommand.

Here's a way to modify the default Algorithm to your liking:

\documentclass{article}
\usepackage{algorithm}% http://ctan.org/pkg/algorithms
\usepackage{algpseudocode}% http://ctan.org/pkg/algorithmicx
\makeatletter
\renewcommand{\ALG@name}{Algoritme}% Afrikaans
\makeatother
\begin{document}
\begin{algorithm}
  \caption{Hierdie is 'n algoritme.}
  \begin{algorithmic}[1]
    \State Iets
    \State Iets anders
  \end{algorithmic}
\end{algorithm}
\end{document}​

Note that this is actually independent of the algorithmic environment.

---

The algorithm2e package is a more complete package in the sense that it provides its own algorithm environment. It also supports a number of language options by default, including english, french, czech, german, portuguese, italiano, and slovak. For example, using (from the algorithm2e documentation):

\documentclass{article}
\usepackage[portuguese]{algorithm2e}% http://ctan.org/pkg/algorithm2e
\begin{document}
\begin{algorithm}[H]
  \SetAlgoLined
  \KwData{this text}
  \KwResult{how to write algorithm with \LaTeX2e }
  initialization\;
  \While{not at end of this document}{
    read current\;
    \eIf{understand}{
      go to next section\;
      current section becomes this one\;
    }{
      go back to the beginning of current section\;
    }
  }
  \caption{How to write algorithms}
\end{algorithm}
\end{document}

produces

These language options set a number of commands other than just the algorithm name (stored in \algorithmcfname). Here's an extract for the portuguese language option:

\DeclareOption{portuguese}{%
\renewcommand{\listalgorithmcfname}{Lista de Algoritmos}%
\renewcommand{\algorithmcfname}{Algoritmo}%
\renewcommand{\algorithmautorefname}{algoritmo}%
\renewcommand{\algorithmcflinename}{linha}%
\renewcommand{\algocf@typo}{}%
\renewcommand{\@algocf@procname}{Procedimento}%
\renewcommand{\@algocf@funcname}{Fun\c{c}\~{a}o}%
\renewcommand{\procedureautorefname}{procedimento}%
\renewcommand{\functionautorefname}{fun\c{c}\~{a}o}%
\renewcommand{\algocf@languagechoosen}{portuguese}%
}%

If your language is not supported here, you can perform the manual redefinitions yourself using a similar setup to the language settings above. If you just have a couple of changes that doesn't affect many components of your document, using

\renewcommand{\algorithmcfname}{Algoritme}% Afrikaans "Algorithm"

should work. You may also want to define your keywords accordingly.