I am using "elsarticle" class and need to place two algorithms side by side. I am using minipage fucntion to do this but algoirthms are not geenrated exactly side by side (a picture is attched for your reference). A working latex code is given as:
documentclass[3p]{elsarticle}
\usepackage{hyperref}
%\modulolinenumbers[5]
\usepackage[ruled,linesnumbered]{algorithm2e}
\usepackage{amsfonts}
\usepackage{threeparttable}
\usepackage{tabularx}
%\usepackage{cite}
\usepackage{mathtools}
\DeclarePairedDelimiter\ceil{\lceil}{\rceil}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{multirow}
\usepackage{algorithm}
\usepackage{algpseudocode}
\begin{document}
\begin{minipage}{0.5\textwidth}
\begin{algorithm}[H]
% \caption{(X,Y)-only co-Z addition with update ($ZADDU_{(X,Y)}$)}
\caption{ $ZADDU_{(X,Y)}$}
\label{alg1}
%\begin{multicols}{2} % and a label for \ref{} commands
\begin{algorithmic}[1]
\Require{ $R_1 = (X_1, Y_1, Z )$ and $R_2 = (X_2, Y_2, Z)$ }
\Ensure {$(R_3, R_1)\mspace{5mu} = \mspace{5mu}ZADDU_{(X,Y)}(R_1, R_2)$ $\mspace{15mu}$where $R_3= R_1 R_2=
(X_3, Y_3, Z_3)$ and $R_1 = (\lambda^2{X_1}, \lambda^3 {Y_1}, Z_3)$ with $Z_3=\lambda Z$ for some $\lambda\neq0$}\\
% \tcc{\textbf{Phase A:}}
% $z := 0, R_1 := x$\;
% $R_2 := u_2$\;
%
% \tcc{\textbf{Phase B:}}
$B=(X_1-X_2)^2$;
$E_1 =X_1 U; E_2 = X_2 U$; $C =(Y_1 - Y_2)^2$\\
$D =Y_1 (E_1 - E_2)$; $X_3=C - E_1 - E_2$;
$Y_3=(Y_1 - Y_2)(E_1 - X_3 ) - D$;\\
${X_1}= E_1$; ${Y_1} = D$;
$R_3=(X_3, Y_3)$, $R_3=(X_1, Y_1)$\\
\Return{($R_3,R_1$)}\;
\end{algorithmic}
\end{algorithm}
\end{minipage}
\hfill
\begin{minipage}{0.5\textwidth}
\begin{algorithm}[H]
% \caption{(X,Y)-only conjugate co-Z addition ($ZADDC_{(X,Y)}$)}
\caption{$ZADDC_{(X,Y)}$}
% give the algorithm a caption
\label{alg1}
%\begin{multicols}{2} % and a label for \ref{} commands
\begin{algorithmic}[1]
\Require{ $R_1 = (X_1, Y_1, Z )$ and $R_2 = (X_2, Y_2, Z)$ }
\Ensure {$(R_3, \overline R_3)\mspace{5mu} = \mspace{5mu}ZADDC_{(X,Y)}(R_1, R_2)$$\mspace{10mu}$where $R_3= R_1 R_2=
(X_3, Y_3, Z_3)$ and $\overline R_3 =R_1 - R_2= (\overline{X_3},\overline {Y_3}, Z_3)$ }\\
% \tcc{\textbf{Phase A:}}
% $z := 0, R_1 := x$\;
% $R_2 := u_2$\;
%
% \tcc{\textbf{Phase B:}}
$B=(X_1-X_2)^2$;
$E_1 =X_1 U; E_2 = X_2 U$; $C =(Y_1 - Y_2)^2$;\\
$D =Y_1 (E_1 - E_2)$; $X_3=C - V_1 - V_2$;
$Y_3=(Y_1 - Y_2)(E_1 - X_3 ) - D$; \\
$\overline{C} = (Y1 Y2)^2$; $\overline{X_3}= \overline{C} - E_1 - E_2$; $\overline{Y_3} = (Y_1 Y_2)(E_1 - \overline{X_3} ) - D$;\\
\Return{($R_3,\overline R_3$)}\;
\end{algorithmic}
\end{algorithm}
\end{minipage}
\end{document}
An output picture is attached, any help to allign these algorithms side by side would be appreciated alot.
CodePudding user response：
A couple of problems:
missing
\in front ofdocumentclassincompatible package. Your document will produce the error
Command \listofalgorithms already defined. ...s}{\listof{algorithm}{\listalgorithmname}}You should never ignore error messages. After an error latex only recovers enough to syntax check the rest of the document, not necessarily producing sensible output
you are placing two minipages with
.5\textwidtheach besides each other. This will fill the entire line leaving no space for all the additional spaces added by your unescaped line endings. Either make your minipages smaller or add%at the end of lines so they don't act like spacesuse unique labels for your algorithms
the
hyperrefpackage should be loaded as one of the last packages. Don't load it directly at the start of your preambleand just from your picture I would guess that in your real document you are missing an empty line before the minipages
\documentclass[3p]{elsarticle}
%\modulolinenumbers[5]
\usepackage[ruled,linesnumbered]{algorithm2e}
\usepackage{amsfonts}
\usepackage{threeparttable}
\usepackage{tabularx}
%\usepackage{cite}
\usepackage{mathtools}
\DeclarePairedDelimiter\ceil{\lceil}{\rceil}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{multirow}
%\usepackage{algorithm}
\usepackage{algpseudocode}
\usepackage{hyperref}
\begin{document}
\noindent\begin{minipage}{0.5\textwidth}
\begin{algorithm}[H]
% \caption{(X,Y)-only co-Z addition with update ($ZADDU_{(X,Y)}$)}
\caption{ $ZADDU_{(X,Y)}$}
\label{alg1}
%\begin{multicols}{2} % and a label for \ref{} commands
\begin{algorithmic}[1]
\Require{ $R_1 = (X_1, Y_1, Z )$ and $R_2 = (X_2, Y_2, Z)$ }
\Ensure {$(R_3, R_1)\mspace{5mu} = \mspace{5mu}ZADDU_{(X,Y)}(R_1, R_2)$ $\mspace{15mu}$where $R_3= R_1 R_2=
(X_3, Y_3, Z_3)$ and $R_1 = (\lambda^2{X_1}, \lambda^3 {Y_1}, Z_3)$ with $Z_3=\lambda Z$ for some $\lambda\neq0$}\\
% \tcc{\textbf{Phase A:}}
% $z := 0, R_1 := x$\;
% $R_2 := u_2$\;
%
% \tcc{\textbf{Phase B:}}
$B=(X_1-X_2)^2$;
$E_1 =X_1 U; E_2 = X_2 U$; $C =(Y_1 - Y_2)^2$\\
$D =Y_1 (E_1 - E_2)$; $X_3=C - E_1 - E_2$;
$Y_3=(Y_1 - Y_2)(E_1 - X_3 ) - D$;\\
${X_1}= E_1$; ${Y_1} = D$;
$R_3=(X_3, Y_3)$, $R_3=(X_1, Y_1)$\\
\Return{($R_3,R_1$)}\;
\end{algorithmic}
\end{algorithm}
\end{minipage}%
%\hfill
\begin{minipage}{0.5\textwidth}
\begin{algorithm}[H]
% \caption{(X,Y)-only conjugate co-Z addition ($ZADDC_{(X,Y)}$)}
\caption{$ZADDC_{(X,Y)}$}
% give the algorithm a caption
\label{alg2}
%\begin{multicols}{2} % and a label for \ref{} commands
\begin{algorithmic}[1]
\Require{ $R_1 = (X_1, Y_1, Z )$ and $R_2 = (X_2, Y_2, Z)$ }
\Ensure {$(R_3, \overline R_3)\mspace{5mu} = \mspace{5mu}ZADDC_{(X,Y)}(R_1, R_2)$$\mspace{10mu}$where $R_3= R_1 R_2=
(X_3, Y_3, Z_3)$ and $\overline R_3 =R_1 - R_2= (\overline{X_3},\overline {Y_3}, Z_3)$ }\\
% \tcc{\textbf{Phase A:}}
% $z := 0, R_1 := x$\;
% $R_2 := u_2$\;
%
% \tcc{\textbf{Phase B:}}
$B=(X_1-X_2)^2$;
$E_1 =X_1 U; E_2 = X_2 U$; $C =(Y_1 - Y_2)^2$;\\
$D =Y_1 (E_1 - E_2)$; $X_3=C - V_1 - V_2$;
$Y_3=(Y_1 - Y_2)(E_1 - X_3 ) - D$; \\
$\overline{C} = (Y1 Y2)^2$; $\overline{X_3}= \overline{C} - E_1 - E_2$; $\overline{Y_3} = (Y_1 Y_2)(E_1 - \overline{X_3} ) - D$;\\
\Return{($R_3,\overline R_3$)}\;
\end{algorithmic}
\end{algorithm}
\end{minipage}%
\end{document}
