(trick) working with hours, minutes, seconds

[Tugdual]

(02-24-2014 08:46 PM)Helge Gabert Wrote:  Aha!

Thanks - - that would explain it. Odd that radian mode is fine, and degree mode has this problem . . .

Did you try? I have the same problem in degree.
Also if I enter asin(sin(π)) I get zero in CAS degree mode.
Even more funny: acos(cos(π/2)) is 90 in degree

There are obviously meaningless hard coded optimizations...
Edit: I'm going to promote this as a bug.