trigreduce gives malformed property list error
trigsimp/trigonometricp fails with pderivop
quotient by polynomial of higher degree
VOTE: maxima
solve sometimes gives wrong solution when using ratvars
solve gives error for certain systems of underdetermined equations
I'm sorry, I see that in my reply I said variables a,b,c, which is not what I meant....
I understand what is going on, I just do not think that code that comes with maxima...