Graphics, Figures & Tables ⇒ How to extend the equation alignment a little bit?

[wolfrain]

Hi all,

I have a quite long equation in my work, and unfortunately it extends 'too right' to the paper alignment with respect to the page number in the header.

Capture.PNG (17.67 KiB) Viewed 2572 times

Is there any command to make it centered without aligning to that right?

Code: Select all

\begin{equation*}
\begin{matrix}
\ i = 1 : & \begin{vmatrix} a_{32} & a_{33} & a_{34} \\ a_{22} & a_{23} & a_{24} \\ a_{12} & a_{13} & a_{14} 												\end{vmatrix}	& & & & & \\
\ i = 2 : & \begin{vmatrix} a_{31} & a_{33} & a_{34} \\ a_{21} & a_{23} & a_{24} \\ a_{11} & a_{13} & a_{14} 												\end{vmatrix} & \emph{compare with} & 
						\begin{vmatrix} a_{31} & a_{32} & a_{33} \\ a_{21} & a_{22} & a_{23} \\ a_{11} & a_{12} & a_{13} 												\end{vmatrix}	& \implies 
					& \begin{tabular}{c|ccc}
						\backslashbox[6pt][l]{i}{j} & 1 & 2 & 3\\\hline
						1 & 1 & 1 & 1 \\	
						2 & 0 & 1 & 1 \\	
						3 & 0 & 0 & 1 \\
						4 & 0 & 0 & 0
						\end{tabular}	
						\xRightarrow[Table]{Simplified}
					& \begin{tabular}{|c|c|c|}
						\hline
						1 & 1 & 1 \\	\hline
						0 & 1 & 1 \\	\hline
						0 & 0 & 1 \\	\hline
						0 & 0 & 0	\\	\hline
						\end{tabular}	\\
\ i = 3 : & \begin{vmatrix} a_{31} & a_{32} & a_{33} \\ a_{21} & a_{22} & a_{23} \\ a_{11} & a_{12} & a_{13} 												\end{vmatrix} & & & & 
\end{matrix}
\end{equation*}

EDIT： Also, can we include tabular or matrix equation (not the 'envioronment' but things like \begin{matrix} ... \end{matrix}) in environment figure?

Basically I want to programme some matrix equation, but instead of referring as equation, figure reference is needed. So I am thinking putting \begin{matrix} ... \end{matrix} in \begin{figure} ... \end{figure}, but it doesn't work...

Code: Select all

\begin{figure}
\begin{matrix} 
... 
\end{matrix}
\end{figure}

Any idea?

Thank you
wolfrain

[wolfrain]

With my friends' assistance,
1) Question 1

I find a way to move it a little left using

Code: Select all

\hspace{-3cm}
\begin{minipage}[c]{\linewidth}
\begin{equation*}
\begin{matrix}
                ...
\end{matrix}
\end{equation*}
\end{minipage}

And it works fine.

2) Question 2
If you want to add caption to matrix equation, just do this:

Code: Select all

\begin{figure}[!htbp]
$
\begin{matrix}
                ...
\end{matrix}
$
\caption{bla bla...}
\end{figure}

and it will refer it as figure.


3) New question... (asking for help...)
However, on top of that, what I want to do next is combine these two bits of code together. Like, because I have a very long matrix, as shown in the first reply, I need to use \minipage{}; and I also want to add caption to my matrix and refer the whole bit as figure, so I needs to use \begin{figure} ... \end{figure}.

Code: Select all

\hspace{-2cm}
\begin{minipage}[c]{\linewidth}
%\footnotesize
\begin{figure}[!htbp]
$
\begin{matrix}
...
\end{matrix}
$
\caption{bla...}
\label{fig:bla...}
\end{figure}
\end{minipage}

But the compiler looks unhappy with this, saying:

Code: Select all

! LaTeX Error: Not in outer par mode.
! Undefined control sequence.
! Missing number, threated as zero

all of them are pointing at the \begin{figure}[!htbp]

I am under big pressure...

[gmedina]

Hi,

you could use something like the following:

Code: Select all

\documentclass{book}
\usepackage{caption}

\begin{document}

\hspace*{-2cm}
\begin{minipage}[c]{\linewidth}
\footnotesize
$
\begin{matrix}
...
\end{matrix}
$
\captionof{figure}{bla...}
\label{fig:bla...}
\end{minipage}

\end{document}

[wolfrain]

Hi,

you could use something like the following:

Code: Select all

\documentclass{book}
\usepackage{caption}

\begin{document}

\hspace*{-2cm}
\begin{minipage}[c]{\linewidth}
\footnotesize
$
\begin{matrix}
...
\end{matrix}
$
\captionof{figure}{bla...}
\label{fig:bla...}
\end{minipage}

\end{document}

Thank you mate!
It works fine so far!