7 code plus.py 文件源码

def show(self):
#        pl.semilogy(self.theta, self.omega)
#                , label = '$L =%.1f m, $'%self.l + '$dt = %.2f s, $'%self.dt + '$\\theta_0 = %.2f radians, $'%self.theta[0] + '$q = %i, $'%self.q + '$F_D = %.2f, $'%self.F_D + '$\\Omega_D = %.1f$'%self.Omega_D)
        pl.plot(self.theta_phase ,self.omega_phase, '.', label = '$t \\approx 2\\pi n / \\Omega_D$')
        pl.xlabel('$\\theta$ (radians)')
        pl.ylabel('$\\omega$ (radians/s)')
        pl.legend()
#        pl.text(-1.4, 0.3, '$\\omega$ versus $\\theta$ $F_D = 1.2$', fontsize = 'x-large')
        pl.title('Chaotic Regime')
#        pl.show()
#        pl.semilogy(self.time_array, self.delta)
#        pl.legend(loc = 'upper center', fontsize = 'small')
#        pl.xlabel('$time (s)$')
#        pl.ylabel('$\\Delta\\theta (radians)$')
#        pl.xlim(0, self.T)
#        pl.ylim(float(input('ylim-: ')),float(input('ylim+: ')))
#        pl.ylim(1E-11, 0.01)
#        pl.text(4, -0.15, 'nonlinear pendulum - Euler-Cromer method')
#        pl.text(10, 1E-3, '$\\Delta\\theta versus time F_D = 0.5$')
#        pl.title('Simple Harmonic Motion')
        pl.title('Chaotic Regime')