trig representation

[DrD]

Thanks for that, Parisse. I have made a note in my guide for that!

I don't know of any better algorithms. A simple, consistent answer is all I can hope for with the prime CAS. I have learned that math education is not the same world wide. I used to think that math was a universal language! Imagine ... a representation of math was used on the golden records that NASA earthlings sent out into space on the Voyager spacecraft. If we have these math differences here on earth, how will universal interpretations ever have much hope of succeeding? I guess the fact that *anything* shows up on the records will set extra-terrestrial minds to wondering. (I know the hp prime sometimes makes me wonder)!