4(improved-3).py 文件源码

def show_results(self):
        pl.plot(self.t, self.n_A, 'b', label='Number of Nuclei A')
        pl.plot(self.t, self.n_B, 'g+', label='Number of Nuclei B')
        pl.title('Double Decay Probelm-Situation 3')
        pl.xlim(0.0, 5.0)
        pl.ylim(25.0, 75.0)
        pl.xlabel('time ($s$)')
        pl.ylabel('Number of Nuclei')
        pl.legend(loc='best', shadow=True)