Document Classes ⇒ Error \end{frame} ?

[elisamars]

I'm writing a presentation with LaTeX using the beamer package..This is the wrong slide:

Code: Select all

\begin{frame} \frametitle{The Term Structural Equation}
\begin{alertblock}{SDE for the Bond Price}From (1) and (2) follows that the Bond price satisfies a stochastic differential equation of the kind:
\begin{equation}dP=P \mi (t,s)dt- P \sigma(t,s)dz \end{equation} where $\mi (t,s,r(t))$ and $\sigma^2(t,s,r(t))$ are the mean and variance of r(t) on a bond with maturity date s.
\end{alertblock}
\end{frame}

It turns out an error message of this kind:

1.145 \end{frame}
?

What's wrong?

Thanks a lot.

Elisa

[Stefan Kottwitz]

Hi Elisa,

welcome to the board!

Just the command \mi is unknown. If \mi is removed (or defined) this frame works.

Stefan