[Cfp-interest 1660] Re: Is atan2pi(+/-inf, +/-inf) exact?

[Jim Thomas]

IEEE 754 9.2.1 says these cases signal no exceptions. So exact.

- Jim Thomas

> On Jun 22, 2020, at 9:11 AM, Fred J. Tydeman <tydeman at tybor.com> wrote:
> 
> Should atan2pi( +/-inf, +/-inf ) be exact or inexact?
> The return value is +/-1/4 or +/-3/4 (both are exact in binary and decimal).
> C2X N2478 F.10.1.11 has no mention of inexact, so is exact.
> 
> 
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> Fred J. Tydeman        Tydeman Consulting
> tydeman at tybor.com      Testing, numerics, programming
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