I want to write this matrix in Latex: 
I wrote this code:
\[ \begin{bmatrix} 0 \ldots 0 & 0 \ldots 0 & d_{i,L} & * \ldots *\\ 0 \ldots 0 & 0 \ldots d_{i,L-1} & * & * \ldots *\\ \vdots & \vdots & \vdots & \vdots\\ 0 \ldots d_{i,1} & * \ldots * & * & * \ldots *\\ \end{bmatrix} \] How do I improve upon it?/
Thanks for the help!!
You can add some more aligns:
\documentclass[preview]{standalone} \usepackage{amsmath} \usepackage{amssymb} \usepackage{amsthm} \usepackage{mathdots} \begin{document} $$\Delta(\left|v_{i}\right>)= \begin{bmatrix} 0 & \ldots & 0 & 0 & \ldots & 0 & d_{i,L} & * & \ldots & *\\ 0 & \ldots & 0 & 0 & \ldots & d_{i,L-1} & * & * & \ldots & *\\ \vdots & \iddots & \vdots & \vdots & \iddots & \vdots & \vdots & \vdots & \iddots & \vdots\\ 0 & \ldots & 0 & d_{i,2} & \ldots & * & * & * & \ldots & *\\ 0 & \ldots & d_{i,1} & * & \ldots & * & * & * & \ldots & *\\ \end{bmatrix} $$ \end{document}