The subject says it all! A friend of mine introduced me to these cool objects made of paper strips, and I was wondering if anyone could point me to any resources (ideally freely accessible) to learn more about the mathematical theory behind them.
Flexagons - where to learn the theory behind them?
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reference-request
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1Check [this](https://en.wikipedia.org/wiki/Flexagon#Bibliography) . – 2017-02-27
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0Oh, thanks. I did not realize there was a wikipedia page devoted to them. Should I delete my question? Or maybe you should post your comment as an answer so I can vote it up? – 2017-02-27
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1Dont forget to check [this](https://en.wikipedia.org/wiki/Flexagon#External_links) either. – 2017-02-27