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Cc: freebsd-numerics@FreeBSD.org
Subject: Re: Complex arg-trig functions
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I will keep the inexact raising up-front (mostly because I forgot how I 
did it earlier).

I will still use atanh(fl), and rely on someone else to fix it.  (If it 
is inexact near 0, it is only a few ULP, and that is good enough for me.)

I'll go ahead and see about the pio2h and pio2l.