MATLAB: How to obtain anonymous function after derivative

anonymous functionderivativefunctionfunction handleMATLABSymbolic Math Toolbox

Hi,

can we have an anonymous function after we differntiate an anonymous function? for example see blow

f = @(x) x^4+3*x^2;

now I want to have another anonymous function which is derivative of f(x) .

syms x
df = matlabFunction(diff(f(x), x), 'vars', {x})

syms x
f=sin(x)/(x^2+1);
fplot(f)       
derivative=diff(f,x)
derivative_when_x_equals_one=double(subs(derivative,x,1))

f3 = @(x) f1(x) + f2(x)