[issue29282] Fused multiply-add: proposal to add math.fma()

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

I converted https://hg.python.org/cpython/rev/b33012ef1417 written by Mark Dickinson into a GitHub PR: PR 17987. I still expect tests failures. I plan to use the PR as a starting point to implement math.fma(). If tests continue to fail on some platforms, I plan to manually handle NaN and INF in the C code, before calling libc fma().

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