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Convention of D_n #61

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kcrisman opened this issue Oct 7, 2022 · 2 comments
Open

Convention of D_n #61

kcrisman opened this issue Oct 7, 2022 · 2 comments

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@kcrisman
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kcrisman commented Oct 7, 2022

This is pretty minor, but worth mentioning if it hadn't been before. At

aata/src/permute.xml

Line 1586 in 3f8983e

Find the center of <m>D_8</m>.
it looks like in context (such as the hint) like $D_{2n}$ is defined as the dihedral group of the $n$-gon, but earlier it looks like the notation is clearly $D_n$. Anyway, it's confusing to ask for the center of $D_n$ when all the numbers given are evens.
@kcrisman
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kcrisman commented Oct 7, 2022

Sorry, this was already referenced in #48 nonetheless I think that it's still a bit unclear, since it confused my students today ...

@kcrisman
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kcrisman commented Oct 7, 2022

Maybe one could just add for them to also ask students to consider $D_5$ as an example?

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