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From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: musl@lists.openwall.com
Subject: [musl] accuracy
Date: Sat, 06 Feb 2021 08:46:56 +0100
Message-ID: <mw1rdtvdsf.fsf@tomate.loria.fr> (raw)

       Hi,

with the two patches from Szabolcs on top of musl-1.2.2, I confirm the results
for acosh and sinh are back to normal for the whole binary32 range:

Checking function acosh with MPFR_RNDN
...
libm wrong by up to 2.01e+00 ulp(s) [2] for x=0x1.01cb98p+0
acoshf     gives 0x1.e4ce84p-4
mpfr_acosh gives 0x1.e4ce8p-4
Total: errors=295917691 (6.92%) errors2=2708 maxerr=2.01e+00 ulp(s)

Checking function sinh with MPFR_RNDN
...
libm wrong by up to 1.83e+00 ulp(s) [2] for x=0x1.783ab6p-1
sinhf     gives 0x1.9b038p-1
mpfr_sinh gives 0x1.9b0384p-1
Total: errors=72811936 (1.70%) errors2=31216 maxerr=1.83e+00 ulp(s)

Paul

                 reply	other threads:[~2021-02-06  7:47 UTC|newest]

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