These are my go-to libraries for Python data crunching.

varguid is a Python implementation of the stage-1 variance-guided regression method described in: Liu S. and Lu M. (2026). Variance-Guided Regression for Heteroscedastic Data with a Grouping-Based ...

While Excel is ubiquitous, I prefer Python for my data analysis. Spreadsheets are great for formatting data, but it's Python that's allowed me to build my own super calculator out of regular Python ...

As a beauty journalist and busy mum, I was keen to see if it could offer energising benefits (The Independent/Helen Wilson-Beevers) Despite spending years testing products from a variety of brands, I ...

No brand offers a better introduction to the world of skin care than the Ordinary. Strategist writers and editors swear by it, including Rio Viera-Newton, beauty columnist and esthetician, who trialed ...

To find the equation of a quadratic function from the coordinates of three points, you basically need to solve a system of three linear equations with three variables (High School Mathematics I).

You've probably heard a lot about The Ordinary. A true industry rebel, this accessible skincare brand found fame by taking previously pricey ingredients – from rosehip to retinol – stripping away all ...