Long time since I looked at this but you might be interested in: https://mathr.co.uk/blog/2021-05-14_deep_zoom_theory_and_practice.html https://mathr.co.uk/blo

Long time since I looked at this but you might be interested in: https://mathr.co.uk/blog/2021-05-14_deep_zoom_theory_and_practice.html https://mathr.co.uk/blog/2021-05-14_deep_zoom_theory_and_pra... IIRC it is calculating a few points at high precision and then estimating the rest.