Derivative of a function of three variables

%% Can it be possible to find derivative of 'C' simultaneously with all the variables

syms y S K

C = exp(-y*sqrt(S*K)); CD = diff(C,[y S K])

Answer 1

[Torsten]

syms y S K

C(y,S,K) =exp(-y*sqrt(S*K));

g = gradient(C(y,S,K),[y,S,K])