This question is perhaps trivial but annoying. I don't expect a quick answer.
sage: th = var('th') sage: th.simplif th.simplify th.simplify_factorial th.simplify_log th.simplify_rational th.simplify_exp th.simplify_full th.simplify_radical th.simplify_trig
sage: e^(Ith).simplify_trig() e^(Ith) sage: e^(Ith).simplify_exp() e^(Ith) sage: e^(Ith).simplify_full() e^(Ith) sage: th.simplif th.simplify th.simplify_factorial th.simplify_log th.simplify_rational th.simplify_exp th.simplify_full th.simplify_radical th.simplify_trig
sage: f = cos(th) + Isin(th) sage: f.simp f.simplify f.simplify_factorial f.simplify_log f.simplify_rational f.simplify_exp f.simplify_full f.simplify_radical f.simplify_trig sage: f.simplify_trig() Isin(th) + cos(th) sage: f.simplify_exp() Isin(th) + cos(th) sage: f.simplify_full() Isin(th) + cos(th)
That is all I have tried.
Thanks for your patience in advance!