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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.lang.fortran
Subject: Re: Angle Units For Trig Functions
Date: Thu, 24 Oct 2024 05:46:53 -0000 (UTC)
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On Thu, 24 Oct 2024 05:31:13 -0000 (UTC), Steven G. Kargl wrote:

> It is, however, for floatin point arithmetic, correct to less than or
> equal to 0.5 ULP.

After making such a big deal about exactness, now you’re talking 
acceptable rounding error, which radians-based functions are quite capable 
of supplying?