RE: }-warning when using \fromSlide inside tabular environment

> I get the warning
>
> ! Missing } inserted.
> <inserted text>
>                }
> l.647 \end{slide}}
>
> when I used \fromSlide inside a tabular.

& and \\ can't be used in \fromSlide (and friends)
if not fully processed into boxes by, for instance,
the tabular environment. So, either have the full
tabular in a \fromSlide and if you don't want to
repeat the tabular everytime (as done, eg,  here:
http://www.geocities.com/kijoo2000/prosper_guide.pdf
)
make sure the \fromSlide only contains a single cell.

Further, for maths, one should use `align' from amsmath
and \bm for bold math (\bf changes italic shape to roman)
and is not a LaTeX command (see your favorite manual or
the TeX FAQ for more info on that).

-Hendri.

\documentclass[pdf]{prosper}
\usepackage{amsmath}
\usepackage{bm}
\begin{document}
\overlays{4}{
\begin{slide}[Replace]{Direct reordering algorithm for PRSF}
Then
\begin{align*}
&P_l {\bm X}_0^{-1} (T_{K-1} T_{K-2} \ldots T_{1} T_{0}) {\bm X}_{0}
P_r =\\
&\fromSlide{2}{=\underbrace{P_l {\bm X}_0^{-1}}_{{\textstyle
S_0^{-1}}}T_{K-1}
  \underbrace{{\bm X}_{K-1} P_r}_{{\textstyle S_{K-1}}}
  \underbrace{P_l {\bm X}_{K-1}^{-1}}_{{\textstyle S_{K-1}^{-1}}}
  T_{K-2} \underbrace{{\bm X}_{K-2} P_r}_{{\textstyle S_{K-2}}}
  \ldots
}\\
&\fromSlide{2}{\ldots\underbrace{P_l {\bm X}_{2}^{-1}}_{{\textstyle
S_{2}^{-1}}}T_{1}
  \underbrace{{\bm X}_{1} P_r}_{{\textstyle S_{1}}}
  \underbrace{P_l{\bm X}_{1}^{-1}}_{{\textstyle S_{1}^{-1}}}
  T_{0} \underbrace{{\bm X}_{0} P_r}_{{\textstyle S_{0}}} =
}\\
&\fromSlide{3}{=S_{0}^{-1}T_{K-1}S_{K-1}
  S_{K-1}^{-1} T_{K-2} S_{K-2} \ldots
  S_{2}^{-1}   T_{1}   S_{1}
  S_{1}^{-1}   T_{0}   S_{0} =
}\\
&\fromSlide{4}{=\begin{bmatrix}
  T_{22}^{(K-1)} & 0 \\
  0 & T_{11}^{(K-1)} \\
  \end{bmatrix}\ldots
  \begin{bmatrix}
  T_{22}^{(1)} & 0 \\
  0 & T_{11}^{(1)} \\
  \end{bmatrix}
  \begin{bmatrix}
  T_{22}^{(0)} & 0 \\
  0 & T_{11}^{(0)} \\
  \end{bmatrix},
}
\end{align*}
\end{slide}}
\end{document}



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