MVEBH: Multiple Variable Extended Buchholz Hydra in JavaScript
link of this notation
You can try functions directly by press shift+ctrl+j.
MVEBH: Multiple Variable Extended Buchholz Hydra in JavaScript version 1.1
koteitan, "Hydra Diagram for Multiple Variable Extended Buchholz's Psi and the expansion rule", Googology Wiki User Blog, Feb. 21, 2022.
programmed by koteitan
Source code is on github
The program and the site is licensed by CC-BY-SA 3.0.