[Docutils-users] Questions on using equations in rst

[Ксения Л. <luk...@gm...>]

Hello everyone!
I have some questions about equatuons:
1)  I want to get from rst source latex code like this: How can I do this?
Would it be ok just to use two math:: directives each with :label: option?
The question is on alignment.

\begin{eqnarray}

m_1\ddot{x}_1+(k_1+k_2)x_1-k_2x_2 & = & u_1, \label{spmass1}\\

m_2\ddot{x}_2-k_2x_1+(k_1+k_2)x_2 & = & u_2 . \label{spmass2}

\end{eqnarray}


2) Is it possible to get labels for equations like these:

\begin{equation}

\dot{x}(t) = f(t, x, u),

\label{ctds1}

\end{equation}


\begin{equation}

x(t+1) = f(t, x, u),

\tag*{(\ref{ctds1}d)}

\label{dtds1}

\end{equation} ?

I mean I want labels to look like (1) and (1d), for example.


3)  What about referencing equation from another file (chapter)? Is it possible?


Lukashevichus Ksenia.