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

All straight line graphs have an equation that can be written in the form 𝑦 equals 𝑚𝑥 add 𝑐, where 𝑚, the coefficient of the 𝑥 term, is the gradient or slope of the line. The constant, 𝑐, is ...

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