Is there a method to convert expression containing exponentials like (e^a + e^-a) / 2 to hyperbolic functions? I tried to even call maxima functions directly, but thinks like  cosh(a)._maxima_().exponentialize().demoivre()  still don't give me cosh(a) back but instead return the form in exponentials.
Is there a method to convert expression containing exponentials like (e^a + e^-a) / 2 to hyperbolic functions? I tried to even call maxima functions directly, but thinks like  cosh(a)._maxima_().exponentialize().demoivre()  still don't give me cosh(a) back but instead return the form in exponentials.