I am trying to put a figure with a subtitle but without the name "figure".
For example:

'This is a triangle'
and not put the name "Figure":

'Figure: This is a triangle'
I tried:
1.
\begin{figure}
\begin{center}
\includegraphics[scale=*]{fig.jpg}
\caption{*}
\end{center}
\end{figure}
2.
\begin{frame}
\includegraphics[scale=*]{fig.jpg}
\caption{*}
\end{frame}
And neither have worked.




\captionand add the text as a normal paragraph. – David Carlisle May 17 '14 at 16:58captionpackage in your preamble. Did you do that? – Werner May 17 '14 at 17:58beameras well, flawlessly. Are you sure that you really have the command\usepackage{caption}in preamble? You said that you "has this package", which is somewhat inconclusive, I must say. – Masroor May 17 '14 at 23:49