Equations didn't fit

Question

I created a presentation with University of Hamburg beamer theme, which can be found here. However, in a slide, I wrote long equations but they did not fit and I cannot fix this problem. This is the print screen of this slide.

Answer 1

If you really need to do this, then there is the shrink option to the frame environment in beamer. One writes \begin{frame}[shrink=20] to get at least a 20% reduction in size. So a minimal version of your example looks like:

\documentclass{beamer}

\setbeamertemplate{navigation symbols}{}

\begin{document}

\begin{frame}[shrink=20]
\frametitle{Vector Error Correction Models}
\begin{equation}
  \Delta X_t = \alpha_0 + \sum_{i=1}^I a_i \Delta X_{t-i} +
  \sum_{j=1}^J b_j \Delta Y_{t-j} + \sum_{k=1}^K c_k \Delta Z_{t-k}
  + \Theta \mu_{t-1} + \epsilon_t
\end{equation}
\end{frame}

\end{document}

producing

whereas without shrink one gets:

Note the shrink option implies the squeeze option, which removes alot of the vertical spacing. See the beamer userguide for more information.