accuracy of mathematical functions

[Paul Zimmermann]

       Hi,

a new version is available, co-authored with Vincenzo Innocente:

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

There was no new release of Newlib since the last update (the last
release is still 4.1.0), but for some functions we have found larger
errors (for example for binary64 expm1 the maximal error increased
from 0.902 to 0.907 ulps).

This update includes two new libraries: Apple and CUDA.

Best regards,
Paul Zimmermann