In fact it's not just bc -l, but also when I calculate the following in C
(linked with -lm)
C = (180.0 - A) - B;
a = (double)(c / sin(C)) * sin(A);
b = (double)(c / sin(C)) * sin(B);
Some may recognize this as parts of the Law of Sines.
pjp@neptune$ bc -l
(9 / s(70)) * s(76)
6.58357679385302895866
When I do it with xcalc I get the correct 9.2931043.
What am I doing wrong? How must I massage my system the correct way?
The wrong number was observed on arm64 (bc -l) and amd64 (CGI).
Best Regards,
-peter
