[Tex/LaTex] How to resize a matrix in beamer

matricesscaling

Currently I am having problem in resizing the matrix. The following is the code:

\begin{frame}

\frametitle{XXX}

$$\small\begin{pmatrix}

I_{\frac{k}{2} \times \frac{k}{2}} & 0_{\frac{k}{2} \times \frac{k}{2}} & 1_{\frac{k}{2}\times 1} & E_{\frac{k}{2} \times (\frac{l}{2}-1)} & 0_{\frac{k}{2}\times 1} & 0_{\frac{k}{2} \times (\frac{l}{2} -1)} & 1_{\frac{k}{2} \times (f_2 - \frac{l}{2})} & D_{\frac{k}{2} \times (f_1 - \frac{l}{2})} & A\\

0_{\frac{k}{2} \times \frac{k}{2}} & I_{\frac{k}{2} \times \frac{k}{2}} & 0_{\frac{k}{2}\times 1} & 0_{\frac{k}{2}\times (\frac{l}{2} -1)} & 1_{\frac{k}{2}\times 1} & F_{\frac{k}{2} \times (\frac{l}{2} -1)}& C_{\frac{k}{2} \times (f_2 - \frac{l}{2})} & 1_{\frac{k}{2} \times (f_1 - \frac{l}{2})} & B
\end{pmatrix}$$

\end{frame}

The following is the image produced:

enter image description here

Clearly it is missing the last column containing $A$ and $B$.

Best Answer

The only tricky bit is that \resizebox puts you back into text style.

\documentclass{beamer}
\begin{document}
\begin{frame}

\frametitle{XXX}

\[\resizebox{\textwidth}{!}{$\displaystyle\begin{pmatrix}

I_{\frac{k}{2} \times \frac{k}{2}} & 0_{\frac{k}{2} \times \frac{k}{2}} & 1_{\frac{k}{2}\times 1} & E_{\frac{k}{2} \times (\frac{l}{2}-1)} & 0_{\frac{k}{2}\times 1} & 0_{\frac{k}{2} \times (\frac{l}{2} -1)} & 1_{\frac{k}{2} \times (f_2 - \frac{l}{2})} & D_{\frac{k}{2} \times (f_1 - \frac{l}{2})} & A\\

0_{\frac{k}{2} \times \frac{k}{2}} & I_{\frac{k}{2} \times \frac{k}{2}} & 0_{\frac{k}{2}\times 1} & 0_{\frac{k}{2}\times (\frac{l}{2} -1)} & 1_{\frac{k}{2}\times 1} & F_{\frac{k}{2} \times (\frac{l}{2} -1)}& C_{\frac{k}{2} \times (f_2 - \frac{l}{2})} & 1_{\frac{k}{2} \times (f_1 - \frac{l}{2})} & B
\end{pmatrix}$}\]

\end{frame}
\end{document}

slide

Related Solutions

[Tex/LaTex] How to properly resize a matrix

Size changing commands such as \small or \scriptsize are invalid in math mode.
\scriptstyle and \scriptscriptstyle are not commands with an argument; writing $\scriptstyle<formula>$ or $\scriptstyle{<formula>}$ has exactly the same result.
Neither $\scriptsize\begin{bmatrix}...\end{bmatrix}$ nor $\scriptstyle\begin{bmatrix}...\end{bmatrix}$ work, as you experimented
If you need small matrices there's the smallmatrix environment (with amsmath that you're already loading).
Another way (not that I recommend it) is to say \mbox{\scriptsize$\begin{bmatrix}...\end{bmatrix}$} inside a math formula.

Beamer Scaling – How to Resize a Figure in Beamer

I recommend to avoid using figure environments in beamer, because usually the figures are not intended to float in presentations, and they don't do it as Herbert commented. It can avoid confusion with floats in standard LaTeX. If you just use figure because you need captions, you could do it with the \captionof command of the caption package instead.

Here's an example, where a minipage of a small size .3\textwidth is used together with a caption, and enlarged by \resizebox to \textwidth, the whole box including the caption is scaled.

\documentclass{beamer}
\usepackage{caption}
\begin{document}
\begin{frame}
\resizebox{\textwidth}{!}{%
\begin{minipage}{.3\textwidth}
\centering
 $\begin{array}{c}
    \sum\limits_{i=1}^{\infty} x_i
  \end{array}$
\captionof{figure}{Test figure}
\end{minipage}}
\end{frame}
\end{document}

resized figure with caption in beamer frame

It would cause an error if figure with \caption would be used here instead of minipage. Note, by using the caption package you can benefit from further features of this great package.

Best Answer

Related Solutions

[Tex/LaTex] How to properly resize a matrix

Beamer Scaling – How to Resize a Figure in Beamer

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