Runge-Kutta OpenSCAD implementation applied to the Aizawa attractor

A concise OpenSCAD implementation of the Runge Kutta routine for numerical integration is provided. It accepts systems of ordinary differential equations of arbitrary dimensionality. The possibilities are endless!

As an application example I chose the beautiful Aizawa attractor which is computed in just few lines of code. I also tried to print it, but I had no success so far. The main problem is the poor rigidity of the partially printed structure which doesn't remain steady when the head tra