# Three little gems from Python `math`

module

When programming in a multitude of languages with an aim to get the job done, small details are often missed. It’s a trade-off. Today, while preparing for a Python certification exam, I have discovered, that Python’s standard library `math`

module has three incredibly useful functions which, in my experience, people (yours truly as well) tend to write themselves.

`math.degrees(x)`

converts angle*x*from radians to degrees.`math.radians(x)`

converts angle*x*from degrees to radians.`math.hypot(*coordinates)`

returns the Euclidean norm,`sqrt(sum(x**2 for x in coordinates))`

. This is the length of the vector from the origin to the point given by the coordinates.