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I'm trying to modify a LaTeX file I found that uses the flashcard package:

\documentclass[avery5371,grid]{flashcards}

What packages would I need to add in order to rotate the back of each card by 180 degrees? Can you give a code snippet for the following?

\begin{flashcard}[Theorem]{properties of absolute values}
\vspace*{\stretch{1}}
\begin{enumerate}
\item $|ab| = |a||b|$
\item $\left| \dfrac{a}{b} \right| = \dfrac{|a|}{|b|}$
\item $|a+b| \leq |a| + |b|$
\item $|a-b| \geq ||a| - |b||$
\end{enumerate}
\vspace*{\stretch{1}}
\end{flashcard}
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  • This is just a suggestion but you may want to look into the tcolorbox package to produce similar flash cards. The result will be easier to customize.
    – user231225
    Dec 21, 2020 at 22:30

1 Answer 1

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This involves mucking about with the internals of flashcards and it's completely untested (my laptop had to go back in for repairs, grr), but I think it will work.

\usepackage{rotating}
\makeatletter
\renewcommand{\flashcards@beginframebox}{\begin{turn}{180}}
\renewcommand{\flashcards@endframebox}{\end{turn}{180}}
\makeatother
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  • Perhaps I didn't make myself clear. I plan to print double sided flashcards, so that when I cut them out, I will be able to flip them on the horizontal axis, then back side will read properly. The solution you offered rotates everything --both front and back side- by 180 degrees.
    – J Boyd
    Dec 23, 2020 at 15:39
  • As I noted, this was untested... I'd have to dig deeper into the internals of the package to see where to incorporate the rotation, but any solution will require such digging.
    – Don Hosek
    Dec 23, 2020 at 16:22

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