Plastic number and origami (Q2820328)

The so-called \textit{plastic number} is the unique real solution to the cubic equation \(x^3=1-x\). This number was introduced by the Dutch arquitect Hans van der Laan as a generalization of the golden ratio.NEWLINENEWLINEOn the other hand, the German arquitect Lambert Rosenbusch defined the \textit{cubi ratio} as the unique real solution to the cubic equation \(x^3=1-x\).NEWLINENEWLINEIn this paper, the author provides paper-folding contructions (using the well-known Huzita axioms) for both of these numbers.