中文说明：正态分布又名高斯分布（Gaussian distribution），是一个在数学、物理及工程等领域都非常重要的概率分布，在 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报
English Description：
Normal distribution, also called the Gaussian distribution (Gaussian distribution), in fields such as mathematics, physics and engineering is a very important probability distributions in statistics has influence in many ways. GM is also the only method is to f (t) from negative infinity to x variable ceiling score, get the f (x) is the cumulative distribution function.