algorithms
I am trying to define a function in LaTeX pseudocode, as shown below.
\begin{algorithm}
\begin{algorithmic}[1]
\Function{Increment}{$a$}
.....
\EndFunction
\end{algorithmic}
\end{algorithm}
However, when I compile, I get the error, undefined control sequence \Function{Increment}{$a$}. What mistake am I doing here and how can I solve it?
Command names in LaTeX are case sensitive:
\FOR{$\mathit{bin}=0$ to $\mathit{binCount}$}
...
\ENDFOR
is what the documentation says (I added the \mathit around the multiletter variables, that renders better than writing $binCount$).
The IEEEtran's documentation suggests:
B. Algorithms
IEEE publications use the
figureenvironment to containalgorithmsthat are not to be a part of the main text flow. Peter Williams’ and Rogerio Brito’salgorithmic.stypackage [24] or Szász János’algorithmicx.stypackage [25] (the latter is designed to be more customizable than the former) may be of help in producing algorithm-like structures (although authors are of course free to use whatever LaTeX commands they are most comfortable with in this regard). However, do not use the floatingalgorithmenvironment ofalgorithm.sty(also by Williams and Brito) oralgorithm2e.sty(by Christophe Fiorio) as the only floating structures IEEE uses arefigures andtables. Furthermore, IEEEtran will not be in control of the (non-IEEE) caption style produced by thealgorithm.styoralgorithm2e.styfloat environments.
So, as suggested, do not use the algorithm floating environment; you can wrap your algorithm inside a figure (or figure*) environment (if a caption is required and the captions are to be IEEEtran compliant) and use the algorithmicx package ; something like this:
\documentclass{IEEEtran}
\usepackage{algpseudocode}
\begin{document}
\begin{figure}
\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}
\caption{Euclid's algorithm}\label{euclid}
\end{figure}
\end{document}
If no caption is required, then simply don't use the figure environment.
Best Answer
Like Vikram said: use
algpseudocodefrom thealgorithmicxpackage, it’s superior to the other pseudocode packages.Then you can do the following: