Re: Angle Units For Trig Functions

On Tue, 22 Oct 2024 04:26:59 +0000, Lawrence D'Oliveiro wrote:

On Sun, 20 Oct 2024 05:35:25 -0000 (UTC), Steven G. Kargl wrote:
 

% gfcx -o z a.f90 && ./z 0.500000000      0.500089288
 
One of these values is exact, and one of these raises FE_INEXACT.

 
Does it work for 29° and 31° as well? What’s so special about 30°?

Really?  This is high school trig.

For units of degree, mathematically sin(30) = 1/2, exactly!.
sin(30+n*360) = 1/2 is also exact.

--
steve