4(improved-7).py 文件源码

def show_results(self):
        pl.plot(self.t1, self.n_A1, 'b--', label='A1: Time Step = 0.05')
        pl.plot(self.t1, self.n_B1, 'b', label='B1: Time Step = 0.05')
        pl.plot(self.t2, self.n_A2, 'g--', label='A2: Time Step = 0.1')
        pl.plot(self.t2, self.n_B2, 'g', label='B2: Time Step = 0.1')
        pl.plot(self.t1, self.n_A1_true, 'r--', label='True A1: Time Step = 0.05')
        pl.plot(self.t1, self.n_B1_true, 'r', label='True B1: Time Step = 0.05')
        pl.plot(self.t2, self.n_A2_true, 'c--', label='True A2: Time Step = 0.1')
        pl.plot(self.t2, self.n_B2_true, 'c', label='True B2: Time Step = 0.1')
        pl.title('Double Decay Probelm-Approximation Compared with True in Defferent Time Steps')
        pl.xlim(0.0, 0.1)
        pl.ylim(0.0, 100.0)
        pl.xlabel('time ($s$)')
        pl.ylabel('Number of Nuclei')
        pl.legend(loc='best', shadow=True, fontsize='small')
        pl.grid(True)
        pl.savefig("computational_physics homework 4(improved-7).png")