# Ensuring that vertical space is consistent in list of polynomials

\documentclass{article}
\usepackage[fleqn]{amsmath}
\usepackage{mathrsfs}
\usepackage{amsfonts}
\pagestyle{empty}
\setlength\mathindent{0pt}
\begin{document}
$3x^3$
$3x^2$
$3x$
$3$
\end{document}


When I render this document, there is a lot more space between the first two options than between the second and third options. Is there a way to make sure it's consistent? Thanks!

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BTW, you might want \usepackage{mathtools} instead of amsmath. It fixes a couple of bugs and adds a feature or two. To read about mathtools, run texdoc mathtools in a terminal (assuming you have it installed, of course) –  kahen Nov 23 '10 at 5:56
@kahen: shouldn't one use both? (Though I guess mathtools automatically includes amsmath?) –  Caramdir Nov 23 '10 at 6:31
@Caramdir: Yes, it's automatically included. From the mathtools documentation: a line like \usepackage[fleqn,tbtags]{mathtools} is equivalent to \usepackage[fleqn,tbtags]{amsmath}\usepackage{mathtools}. –  Hendrik Vogt Nov 23 '10 at 14:03

Use gather* to put several equations after each other.
\begin{gather*}