Re: 数式番号にアルファベットを振りたい

名前: あきお
日時: 2003-12-24 15:47:46
IPアドレス: 133.74.115.*

>>24467
すみません、ファイルを張るのを忘れました。例えば以下の場合です。
実際に複数式を出すのは前半のみですが、後半が悪さをしている可能性もあるので、
全部載せました。

＊＊＊＊＊以下、例文＊＊＊＊＊＊

\documentclass[a4paper,12pt]{book}

%-------
\usepackage{amsmath}

%-------Start
\begin{document}



\begin{subequations}
\begin{gather}
\frac{Du}{Dt} - fv + \frac{\partial \Phi}{\partial x} = 0, \label{eq:momentum_equation-x} \\
\frac{Dv}{Dt} + fu + \frac{\partial \Phi}{\partial y} = 0, \label{eq:momentum_equation-y}\\
\frac{\partial \Phi}{\partial z} = \frac{R}{H}T \label{eq:hydrostatic_equation_Phi-T} \\
= \frac{R}{H}\theta e^{-\kappa z / H}, \label{eq:hydrostatic_equation} \\
\frac{\partial u}{\partial x}+\frac{\partial v}{\partial y}+\frac{1}{\rho _0}\frac{\partial }{\partial z}(\rho _0 w) = 0, \label{eq:continuity_equation}\\
\frac{D\theta}{Dt} = 0, \label{eq:thermodynamic_energy_equation}
\end{gather}
where 
$D/Dt=\partial / \partial t + u\ \partial / \partial x + v\ \partial / \partial y + w\ \partial / \partial z$, 
$t$ the time, 
$u$ the $x$-component of the wind, 
$v$ the $y$-component of the wind, 
$w\equiv - (H/p) \ Dp / Dt$ the vertical wind, 
$f$ the Coriolis parameter, 
$T$ the temperature, 
$\theta = T \left( p_s / p \right) ^{\kappa}$ the potential temperature, 
$\rho _0 (z)\equiv \rho _0 (0) \exp (-z/H)$ the basic density, and 
$\kappa \equiv R/c_p$, 
where $c_p$ the specific heat of dry air at constant pressure.
The geopotential $\Phi$ is defined as 
\begin{eqnarray}
\Phi = \int ^{z^{*}} _0 g dz^{*} \nonumber
\end{eqnarray}
where $z^{*}$ the geometric height and 
$g$ the gravitational acceleration. 
Using (\ref{eq:hydrostatic_equation}), we can transform (\ref{eq:thermodynamic_energy_equation}) as 
\begin{equation}
\left( \frac{\partial }{\partial t} + u \frac{\partial }{\partial x} + v \frac{\partial }{\partial y} \right) \frac{\partial \Phi}{\partial z} + wN^2 = 0 \tag{\ref{eq:thermodynamic_energy_equation}$'$}
\label{eq:thermodynamic_energy_equation_prime}
\end{equation}
\end{subequations}
\end{document}

＊＊＊＊おわり＊＊＊＊＊

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