Every Python developer knows some or all of these libraries, because they’re stable, reliable, and excellent at what they do.

HP calculators, slide rules, and Forth all have something in common: reverse polish notation or RPN. Admittedly, slide rules don’t really have RPN, but you work problems on them the same way you do ...

Matrix-vector multiplications form the core of a plethora of scientific computing and machine learning applications that include solving partial differential equations, forward and back propagation in ...

Pivot tables are valuable tools for summarising and analysing large datasets through aggregation functions like sum and average. The pandas.pivot_table() function in Python allows users to create ...

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# Prompt the user to enter the table dimension, convert the string returned by ...

Takes number N from command line, and creates N x N multiplication table in an Excel spreadsheet. Inspired by Al Sweigart's Automate the Boring Stuff with Python: Chapter 12.