%% AMS-LaTeX Created by Wolfram|Alpha. Subject to Pro License. www.wolframalpha.com \documentclass{article} \usepackage{amsmath, amssymb, graphics, setspace} \newcommand{\mathsym}[1]{{}} \newcommand{\unicode}[1]{{}} \newcounter{mathematicapage} \begin{document} \[H_n(x)=\frac{2^n \int_{-\infty }^{\infty } \frac{(x+i t)^n}{e^{t^2}} \, dt}{\sqrt{\pi }}\] \end{document}