Cfrgtkky

I'm making a presentation in LaTeX using the beamer document class, and have the following question:

I'm using pause in my slides. However, in some slides, I have a source at the bottom of the page. How can I make this source appear in every "version" of the slide (i.e., not just after the final pause has passed)?

Edit: Minimal working example:

documentclass[aspectratio=169]{beamer}



usepackage[english]{babel} 

usepackage[utf8]{inputenc}

usepackage[T1]{fontenc}



begin{document}



begin{frame}

frametitle{Recall: Kronecker Product}

Let $Ainmathbb{R}^{mtimes n}$ and $B$ be some other matrix.

$$

Aotimes B := 

begin{bmatrix}

    A_{1,1}cdot B & cdots & A_{1,n}cdot B \

    vdots & ddots & vdots \

    A_{m,1}cdot B & cdots & A_{m,n}cdot B

end{bmatrix}

$$

pause Important properties:

begin{itemize}

    item $ (Aotimes B)^{-1} = A^{-1}otimes B^{-1}$.pause

    item $ (Aotimes B)(Cotimes D) = (ACotimes BD)$ small (if well-defined)

end{itemize}



tiny 

vspace{stretch{100}}  J. Martens and R. Grosse. Optimizing neural networks with kronecker-factored approximate curvature. ICML, 2015.

end{frame}



end{document}

I want the source at the bottom to be visible on every slide, not just after on the third.

Instead of manually adding the source, you could add it as unnumbered footnote - this way it will automatically be displayed from the first slide in the frame:

documentclass[aspectratio=169]{beamer}



usepackage[english]{babel} 

usepackage[utf8]{inputenc}

usepackage[T1]{fontenc}



renewcommand{footnoterule}{}

newcommandsource[1]{%

  begingroup

    setbeamertemplate{footnote}{%

      parindent 1emnoindent%

      raggedright

      insertfootnotetextpar%

    }



    setbeamerfont{footnote}{size=tiny}

    footnotetext{#1}

  endgroup

}



begin{document}



begin{frame}

frametitle{Recall: Kronecker Product}

Let $Ainmathbb{R}^{mtimes n}$ and $B$ be some other matrix.

[

Aotimes B := 

begin{bmatrix}

    A_{1,1}cdot B & cdots & A_{1,n}cdot B \

    vdots & ddots & vdots \

    A_{m,1}cdot B & cdots & A_{m,n}cdot B

end{bmatrix}

]

pause Important properties:

begin{itemize}

    item $ (Aotimes B)^{-1} = A^{-1}otimes B^{-1}$.pause

    item $ (Aotimes B)(Cotimes D) = (ACotimes BD)$ small (if well-defined)

end{itemize}



source{J. Martens and R. Grosse. Optimizing neural networks with kronecker-factored approximate curvature. ICML, 2015.}

end{frame}



end{document}

Off-topic: you should not use $$...$$, see Why is [ ... ] preferable to $$ ... $$?