Matlab - derivadas en matlab

syms x

y=(exp(x)-1)/(exp(x)+1)

derivada=diff(y);

y'=(2*exp(x))/(exp(x) + 1)^2

>> clear all

syms x y

y=(exp(x)-1)/(exp(x)+1);

dy=diff(y);

dy=simplify(dy);

syms('u')

disp(['y', char(39),'=', char(dy)])

y'=(2*exp(x))/(exp(x) + 1)^2