MATH2071: LAB 1(b): Using Matlab ODE solvers
www.math.pitt.edu/~sussmanm/2071Spring08/lab01bCopy your file pendulum_ode.m to decay_ode.m and modify it to include the frictional term .; Use ode45 to solve the resulting ODE for between 0 and 20, starting from the same initial condition as in Exercise 3 above, [1;0].; Plot it in phase space (along the horizontal axis and on the vertical axis) using the command plot(y(:,1),y(:,2)); Please send me the plot.