NumPy Beginner’s Guide - Second Edition的源码（《Python数据分析基础教程，munpy学习指南（第二版）》），有助于学习numpy。-NumPy Beginner s Guide- Second Edition source code ( Python data analysis based tutorial, munpy Study Guide (Second Edition) ), contribute to learning numpy.

Python numpy matplotlib scipy库学习示例代码-Python numpy matplotlib scipy demo

程序员不喜欢日期，因为处理日期总是很烦琐。NumPy是面向浮点数运算的，因此需要对日 期做一些专门的处理。-Programmers don t like to date because the date is always very cumbersome.Numpy is for floating point operations. Therefore, it is necessary to do some special treatment to date.

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