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flintlib / arb

Arb has been merged into FLINT -- use https://github.com/flintlib/flint/ instead
http://arblib.org/
GNU Lesser General Public License v2.1
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Improve Airy function bounds #197

Open fredrik-johansson opened 6 years ago

fredrik-johansson commented 6 years ago

acb_hypgeom_airy_bound can be improved: it blows up when z contains zero, and the formulas are probably more complicated than needed. Some explicit case splitting should be done to write z as a union of intervals that lie in regions with simpler formulas.

acb_hypgeom_airy should be improved accordingly to return better enclosures for wide inputs.

fredrik-johansson commented 6 years ago

Improved in d64055fb3f6 but I'm still not happy with the code; it's far from optimal and very complicated.