Science

Inverse Hyperoperator Notation (informal, German)

(the root-like inverse can be expressed by division in the second argument, so this covers the log-like inverse)

PDFs

MathJax Example

GlowScript Example Helium Toy Model

Full 3 space dimensions Light-”cone”

References:

https://www.researchgate.net/publication/13237773_Helium_atom_as_a_classical_three-body_problem (found recently, interesting, but my work until now was not based on it; 2D)

http://www.scholarpedia.org/article/Quantum_chaos