how do you define "field of computing"?

It's taught in most beginning CS courses, has wide adoption for scientific computing and business. It seems like most apps are prototyped in R/Python before functions get ported to c or parallelized with dask/spark/scala

python was never intended to be a functional language, but it has lambdas. ruby and C++ are both "functional, OO, imperative" in the same way.

C with classes and first class functions is probably the best language