>>>>> "Poul" == Poul Riis <Poul.Riis@skolekom.dk> writes:
Poul> I would be happy to see Maxima reduce the function
Poul> g(x):=tanh(x)^2+sech(x)^2-1;
Poul> but neither trigexpand nor trigreduce does the job.
Poul> What should I do to get the expected zero?
trigsimp seems to simplify it to 0.
Ray