How do I write the code for 3 dimention rosenbrock function?

function Y = objectivefunction (X)

x1 = -7.86586;
x2 = -1.20733;
   

Y = 100*(x2-x1^2)^2 + (x1-1)^2;

end

This is a 2-dimensional function code.

However, this function can also be written in 3 dimention.

Please tell me the 3 dimention rosenbrock function code.