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 ...

Python is powerful, versatile, and programmer-friendly, but it isn’t the fastest programming language around. Some of Python’s speed limitations are due to its default implementation, CPython, being ...

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 ...