老婆写医学实验论文，要用到均方差计算，他装不上专业的软件，于是我就帮他写了一个，虽然很简单，但是结果肯定是没问题的-medical experiments wife wrote papers, we had to use variance, he pretended not professional software, Thus, I would help him write a one, though very simple, but it is certainly not the probl

用来计算太阳高度角，简单方便适合，非常适合同学们的使用-zidong fanyi kyjg