sete” post=66627Salve a tutti,
devo scrivere un array di formule numerate. Ho usato \subeqnarray, ma la le formule non mi vengono allineate. Come devo fare?
Ecco il codice:
`
\documentclass[authoryear,11pt,a4paper,twoside,openright]{book}
\usepackage[italian]{babel}
\usepackage{lmodern}
\usepackage[latin1]{inputenc}
\usepackage{fancyhdr}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{enumerate}
\usepackage{esint}
\usepackage{keyval}
\usepackage[position=top,config, labelfont={rm,bf,up}]{caption,subfig}
\usepackage[round]{natbib}
\usepackage{subeqnarray}\numberwithin{equation}{section}
\numberwithin{figure}{section}\pagestyle{fancy}\addtolength{\headwidth}{20pt}
\rhead[\fancyplain{}{\slshape\leftmark}]{\fancyplain{}
}
\lhead[\fancyplain{}]{\fancyplain{}
{\slshape\rightmark}}\DeclareMathOperator{\erf}{erf}
\begin{document}
\begin{description}
\item \textit{Equazioni di Maxwell:}
\begin{subeqnarray}
\label{eq:Maxwell}
\slabel{1}
\nabla \times \textbf{E}= -\dfrac{\partial\textbf{B}}{\partial t}\\
\slabel{2}
\nabla \times \textbf{B}= \mu_0 \textbf{J}\\
\slabel{3}
\textbf{E}+\textbf{v}\times \textbf{B}=\eta \textbf{J}
\end{subeqnarray}\end{description}
\end {document}
`Grazie a tutti!
S.
Prova così
`\documentclass{book}
\usepackage{amsmath}
\begin{document}
\begin{subequations}
\begin{align}
\label{eq:Maxwell}
\nabla \times \textbf{E}&= -\dfrac{\partial\textbf{B}}{\partial t}\\
\nabla \times \textbf{B}&= \mu_0 \textbf{J}\\
\textbf{E}+\textbf{v}\times \textbf{B}&=\eta \textbf{J}
\end{align}
\end{subequations}
\end{document}`
Ciao
Orlando