# Questions tagged [origami-folding]

For mathematical questions related to origami and other aspects of folding.

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### Solution for the sequence of the number of "major flaps" in origami bases and its relation to other sequences

I have recently been getting into origami and reading Robert J. Lang's (a physicist and one of the leading modern origami artist) books. In the book Origami Design Secrets he showed a sequence of more ...
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### Folding a non-rectangular shape into a rectangle of uniform thickness

I think the following might be an interesting subproblem of this question: Question: For an odd number $n\ge 3$, is there a non-rectangular but still convex shape of area $A=1$, that can be folded (...
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### Napkin Folding Problem / Rumpled Ruble Problem

I am an outsider to this group. I'm a journalist and am working on a piece about theoretical math/geometry. Simply put, when a napkin is folder in such a way to increase its perimeter is that strictly ...
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### Is the "Napkin conjecture" open? (origami)

The falsity of the following conjecture would be a nice counter-intuitive fact. Given a square sheet of perimeter $P$, when folding it along origami moves, you end up with some polygonal flat figure ...