According to Hoobler, the term ‘functional training’ became popular in the late 90s as people began to get more creative and steer away from bodybuilding and linear movement patterns.

Biohackers have turned functional health into a spectacle—one that feels more like performance than health care.

Generally speaking, it’s usually a win when things are functional. Functional fitness, for example, focuses on movement patterns you use in everyday life. Functional fashion might bring to mind ...

This is an interesting class of functions, but not nearly interesting enough for calculus purposes. While I do spend lots of time pushing the idea of linear approximations on my students ...

Can you do it by hand? Why yes. Suppose I take the same data from the pylab example and I imagine trying to add a linear function to represent that data. Here are two choices. Well that is just great.