广播(Broadcast)是 numpy 对不同维度(shape)的数组进行数值计算的方式， 对数组的算术运算通常在相应的元素上进行。 “维度”指的是特征或数据列。例如，有一项研究测量水的温度，另一项研究测量水的盐度和温度，第一个研究有一个维度;温度，而盐度和温度的 ...

If you’re doing work in statistics, data science, or machine learning, the odds are high you’re using Python. And for good reason, too: The rich ecosystem of libraries and tooling, and the convenience ...

Pandas is a library written for the Python programming language for data manipulation and analysis. In particular, it offers data structures and operations for manipulating numerical tables and time ...

In a recent write-up, [David Delony] explains how he built a Wolfram Mathematica-like engine with Python. Core to the system is SymPy for symbolic math support. [David] said being able to work with ...