「On 90°twisting: diagrams」
basics
The twisting diagram that appeared in the
preceding article induces flatly foldable diagrams classified into two cases as follows:
First case of patterns in correspondences:


↑↓
___reflection
___↓↑


Second case of patterns in correspondences:


↑↓
___reflection
___↓↑


>> Click each image to see the larger picture <<

denotes that diagrams in both sides are reversible each other.

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