08-Jan-2022 08:52:27

pendulum_nonlinear_ode_test():
  MATLAB/Octave version 9.8.0.1380330 (R2020a) Update 2
  Solve the nonlinear pendulum ODE.

  Parameter values:
    g     = 9.81
    l     = 2
    m     = 1
    t0    = 0
    y0    = (3.11018,0)
    tstop = 50

  Initial energy             = 9.80758
  Energy needed to flip      = 9.81

pendulum_nonlinear_ode23():
  Test pendulum_nonlinear_ode using ode23.
  Number of adaptive steps = 413
  Graphics saved in "pendulum_nonlinear_ode23_theta.png"
  Graphics saved in "pendulum_nonlinear_ode23_thetadot.png"
  Graphics saved in "pendulum_nonlinear_ode23_phase.png"
  Graphics saved in "pendulum_nonlinear_ode23_energy.png"

pendulum_nonlinear_ode23:
  Normal end of execution.

pendulum_nonlinear_midpoint():
  MATLAB/Octave version 9.8.0.1380330 (R2020a) Update 2
  Test pendulum_nonlinear_ode using midpoint.

  Number of equal steps to use = 1000
  Graphics saved in "pendulum_nonlinear_midpoint_theta.png"
  Graphics saved in "pendulum_nonlinear_midpoint_thetadot.png"
  Graphics saved in "pendulum_nonlinear_midpoint_phase.png"
  Graphics saved in "pendulum_nonlinear_midpoint_energy.png"

pendulum_nonlinear_midpoint:
  Normal end of execution.

pendulum_nonlinear_period_test():
  Compute the period as a function of initial energy.

  Parameter values:
    g     = 9.81
    l     = 2
    m     = 1
    t0    = 0
    y0    = (3.11018,0)
    tstop = 50
    Energy needed to flip      = 9.81
  Graphics saved in "pendulum_nonlinear_period.png"

pendulum_nonlinear_ode_test():
  Normal end of execution.

08-Jan-2022 08:52:37