SPS Forum

Someone please help me! I am currently typing something for my ISM, and I run into trouble when I try to put in a 4x4 'matrix'. Below is more or less my code for the relevant part:
$g_{\alpha \beta}$ is the space-time metric:
\begin{center}
\begin{equation*}
$g_{\alpha \beta}$ = \begin{bmatrix} 1 &0 &0 &0 \\ 0 &-1 &0 &0 \\ 0 &0 &-1 &0 \\ 0 &0 &0 &-1 \end{bmatrix} = g^{\alpha \beta}.
\end{equation*}
\end{center}

The result looks nice and all, but the problem is the space... between the '$g_{\alpha \beta}$ is the space-time metric:' line and the equation there is a big gap (like you pressed 'Enter' too many times in a Word Doc). If I remove \begin{center} and \end{center}, then the equation aligns itself to the left (though the problem with the excessive spacing mentioned before this is gone). So I don't know... anyone has any suggestions?

How come you have dollar signs $ in equation environment?

What if you try \begin{eqnarray} instead of \begin{equation}?

Or nowadays I tend to use \begin{align}, which works better for aligning different lines of equations.

The dollar sign is a mistake. I've rectified that, but I forgot to change it here... woops...

Thanks for the suggestion. I'll try it out now...

Wheee! It works! Thanks, Yen Kheng... ^^