Accuracy of Mathematical Functions

Paul Zimmermann Paul.Zimmermann@inria.fr
Fri Feb 13 11:09:15 GMT 2026


       Hi,

a new update of our comparison is available:

https://members.loria.fr/PZimmermann/papers/accuracy.pdf

Main changes in this update (with GNU libc 2.43):

* GNU libc now provides seven correctly-rounded functions in double
  precision (acosh, asinh, atanh, erf, erfc, lgamma, tgamma)

* thanks to Katsuhisa Ozaki, we have updated to MSVC 2026, where several
  issues reported against MSVC 2022 have been fixed

* in double precision, for all C99 univariate functions, at least one library
  now provides a correctly-rounded version, except atan, cosh, sinh, tanh

Brian Gladman
Vincenzo Innocente
John Mather
Katsuhisa Ozaki
Paul Zimmermann


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