Why don't you try something yourself first? I would recommend writing parts of your equation as separate functions and combining them like this:
%instead of y=@(x) x.^2 + sqrt(sin(x.^3))
part1=@(x) x.^2;
part2=@(x) sqrt(sin(x*part1(x)));
y=@(x) part1(x) + part2(x);
