Re: Radians Or Degrees?

Keith Thompson wrote:

I can see how computing sin(x) with high precision for "reasonable"
values of x would be useful, but does any of that benefit from being
able to compute sin(2^53) accurately? 

Because accurate argument reduction reduces the burden on the programmer to remain within his sandbox. Since early 1990s, when Payne and Hanek
argument reduction became widely available, there is no reason NOT to
perform argument reduction with great accuracy. NOTE: you don't HAVE to
use Payne and Hanek when simpler strategies word adequately; but when
they do not, you do not have to "Throw up your hands" and run away.