Math & Science ⇒ Creating a Matrix with a Large 0 in the Upper Triangle?

[mombe]

Hi All,

I'm just finishing up my undergrad, and am relatively new to LaTeX (I've only been using it for a year) so I appologize if this is a silly question.

What I'm trying to do is to create a lower triangular matrix, with the entire upper triangle (all zeros) denoted by one large zero in the center of the upper triangle. I can't find a large 0 symbol anywhere, nor do I know how to change the math font size in only one place. Any available help would be greatly appreciated.

Best,
Ethan

[localghost]

An example from my archives which probably needs some adjustments. It's just a basic structure.

Code: Select all

\documentclass[11pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{mathtools}  % loads »amsmath«
\usepackage{multirow}

\begin{document}
  \begin{equation}
    \begin{pmatrix}
      1 & \multicolumn{2}{c}{\text{\kern0.5em\smash{\raisebox{-1ex}{\Large 0}}}} \\
      & 1 &  \\
      \multicolumn{2}{c}{\text{\kern-0.5em\smash{\raisebox{0.75ex}{\Large 0}}}} & 1
    \end{pmatrix}
  \end{equation}
\end{document}

Thorsten

[mombe]

Thanks! That worked perfectly with a little tweaking!!