Text Formatting ⇒ Text Alignment, equations alignment, and extra space!

[amegahed3]

Hi all,

I have a couple of questions concerning some formatting issues:

1. How can I custom align text? More specifically, suppose I wanna write this in Latex:

Code: Select all

For i=0 to 10, do
     while j=0 to 5, do
             If j=t+1, do
                change t to t-1
                Do other necessary modifications
             End if
   End while
End for

How can I write such a previous algorithm in that specific text alignment?

2. How can I align a set of equations to the left?

So, for instance the following code centers those 2 equations:

Code: Select all

 \begin {flalign}
 x=y+1 \\
 \sum\limits_{s \in S} X_s =10
 \end{flalign}

How can I make it align them to the left?

And how can I let any equation that begins with "==" be aligned with the previous "=" of the previous equation (not in the previous code)?

3. The following code leaves a wider big vertical space between the second enumeration and the italic word "Assumptions:" than the vertical space between the first enumeration and that same word:

Code: Select all

\begin{enumerate}
  \item \textbf{Column Generation procedure}\\
\noindent \emph{Assumptions:}
\begin{enumerate}
  \item No literature found!
  \item The routing paper.
 \end{enumerate}

\end{enumerate}

HOw can I avoid that extra space, and make that extra space between the first enumeration and "assumptions"?

I'd really appreciate any help.

Thanks a lot.

Aly

[gmedina]

Hi,

1) The verbatim environment can be an intial (and really basic) option. However, the listings package offers you a complete range of configurable options to write (pseudo)-code.

3) You can do something like this:

Code: Select all

\begin{enumerate}
  \item \textbf{Column Generation procedure}
  \item[] \emph{Assumptions:}\vspace*{-5pt}
  \begin{enumerate}
    \item No literature found!
    \item The routing paper.
  \end{enumerate}
\end{enumerate}

2) Do you want the left alignment to apply to all of your equations or just to some of them? Anyway, the amsmath package documentation can give you some ideas.

[christiem]

1) The <algorithms> package is also very nice if you have to write a lot of pseudo-code.
http://www.ctan.org/tex-archive/macros/ ... lgorithms/

For example, try running this to get a version of your pseudo-code from above:

Code: Select all

\usepackage{algorithm,algorithmic}
\usepackage{amsmath}

\begin{document}

\begin{algorithm}
\caption{Calculate $y = x^n$}\label{alg1}
\begin{algorithmic}
\FOR{$i=0:10$}
    \WHILE{$j=0:5$}
        \IF{$j=t+1$}
            \STATE Change $t$ to $t-1$
            \STATE Do other necessary modifications
        \ELSIF{some other condition is true}
            \STATE do some different processing
        \ENDIF
    \ENDWHILE
\ENDFOR
\end{algorithmic}
\end{algorithm}

\end{document}