Mathematics of paper folding - Wikipedia

The discipline of origami or paper folding has received a considerable amount of mathematical study. Fields of interest include a given paper model's flat-foldability (whether the model can be flattened without damaging it), and the use of paper folds to solve up-to cubic mathematical equations. In 1893, Indian civil servant T.

https://en.wikipedia.org/wiki/Mathematics_of_paper_folding