I've looked everywhere online and everything says to just to use d(f(x),x) to get a derivative and do integrals the same way. But I keep getting numbers.
I put in d(x^2,x) and I get 0.000106 for example.
I put in S(x^2,x) and I get 4.91563E-14.
Shouldn't I be getting functions? Is there a setting you need before you can do derivatives and integrals?
Thanks very much if you can help