Plot the contour lines of the Rosenbrock function using the Matlab function contour (first you will need to call the function meshgrid to generate a mesh; for help with this, refer to Matlab help on the Internet). For each method, take the initial guess as Xo = (21, X2) = (-2,-5), and plot the trajectory of the iterate sequence {xk], on the contour plot of the Rosenbrock function. Among the four studied methods, which trajectory is more oscillatory? Plot the contour lines of the Rosenbrock function using the Matlab function contour (first you will need to call the function meshgrid to generate a mesh; for help with this, refer to Matlab help on the Internet). For each method, take the initial guess as Xo = (21, X2) = (-2,-5), and plot the trajectory of the iterate sequence {xk], on the contour plot of the Rosenbrock function. Among the four studied methods, which trajectory is more oscillatory