Write a MATLAB script to use the gradient descent method to minimize two different functions: f(x) = 10x₁² + 10x₂² and f(x) = 10x₁² + x₂². For each function, use x₀= [0.5, 10]^T as the starting point and ||?f(x)|| < 10^-6 as the stopping criterion. Plot the trajectories of the iterates in your x₁-x₂ plane.