Hi, I am new to maxima, and despite spending quite some time with the reference manual I do not see how to replace any occurrence of sine and cosine by the corresponding exponentials; e.g., 3 sin(a) + cos(b) should be turned into a sum of exp(%i*a), exp(-%i*a), exp(%i*b), and exp(-%i*b). TIA for any hints or pointers! Albert.