28-Jul-2021 21:34:15

polar_ode_test()
  MATLAB/Octave version "9.9.0.1467703 (R2020b)"
  Test polar_ode, an ordinary differential equation (ODE)
  involving a complex variable, whose solution is best 
  viewed in a polar coordinate plot.

  Parameter values:
    t0    = 0
    z0    = (1,    tstop = 18.8496

polar_midpoint_test()
  Solve the polar ODE using midpoint().

  Number of equal steps = 201
  Graphics saved as "polar_midpoint.png"
  Graphics saved as "polar_midpoint_time.png"
  RMS error norm = 0.00273351
  L2 error norm = 0.0388505

polar_ode45_test()
  Solve the polar ODE using ode45().
  Number of steps taken was 141
  Graphics saved as "polar_ode45.png"
  Graphics saved as "polar_ode45_time.png"
  RMS error norm = 0.00226851
  L2 error norm = 0.0269371

polar_ode_test
  Normal end of execution.
28-Jul-2021 21:34:24