I would like to uncover elements of an equation one at a time. This is easy enough usually, but in this case I'd like to progressively reveal a fraction. The problem with the way I'm doing it is that the fraction line is visible throughout, and for obvious aesthetic reasons I'd only like it to show up on the last uncover. Here's how I'm doing it now :
\documentclass[8pt,xcolor=dvipsnames,compress]{beamer}
\begin{document}
\begin{frame}
$\frac{\uncover<2->{\int} \phi(\lambda) \uncover<2->{T(\lambda) \lambda d \lambda}}{\uncover<3->{\int \phi_{S}(\lambda) T(\lambda) \lambda d \lambda}}$
\end{frame}
\end{document}
This reveals the elements I'd like to reveal when I'd like to reveal them, but as I've said keeps the fraction line throughout. Any ideas on how to only make it appear on step 3 ?
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. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.\frac
line white in the first 2 slides and black again in the last one... Gonna try to see if that's doable.