In How can I auto adjust a equation to appear in the entire page? (Scale to equations, is this exist?) I asked how I could change the equation sizes.
Nothing seemed to work. But the problem was I was using latex (Kile) and seeing the the results in dvi. When I used pdflatex as @Hooked proposed I got good results in the pdf.
Why? Why I can't use dvi? Or if I can use dvi, how to do this?
The code below generated this (using latex and dvi):
when the correct is this(possible using pdflatex).):
\documentclass[landscape, 12pt]{report}
\usepackage{graphicx}
\pagestyle{empty}
\begin{document}
\noindent Here is some text
\begin{equation}
\resizebox{1.0 \textwidth}{!}
{
$ a + b $
}
\end{equation}
and here is some more.
\end{document}