Logistic映射又称为抛物线映射，本文，用python来研究Logistic映射过程中的稳定状态。
工具/原料
电脑
python3.6（Anaconda）
方法/步骤
1、自定义函数如下图：defpaowuxian(d,x,n):……defxunhuanjie(d,x,n):……
2、当系数d为3.5，初始值为0.99999，而精度控制在小数点后5位有效数字，那么Logistic映射的稳定状态，是周期为4的循环状态：[0.87499,0.38283,0.82694,0.50088]
3、当系数变为3.6的时候，稳定周期是18：[0.87189,0.40211,0.8655,0.41907,0.87642,0.3899,0.85636,0.44282,0.88822,0.35742,0.82681,0.5155,0.89913,0.3265,0.79163,0.59382,0.86831,0.41165]
4、同样是系数保持为3.6，把精度提高到7，稳定周期变为98：
5、系数变为3.53的时候，稳定周期变为8：[0.8814717,0.368812,0.8217476,0.517069,0.8814715,0.3688126,0.8217482,0.5170676]
6、把精度提高到15，稳定周期仍旧是8：
7、系数为3.57，精度为5，初始值为0.99999，那么，稳定周期是64：
8、系数为3.561，初始值为0.99999，精度为7的Logistic映射的稳定周期是8。
9、系数为3.562，初始值为0.99999，精度为7的Logistic映射的稳定周期是16。
