What is an array, really? Abstract arrays | Week 8 | 18.S191 MIT Fall 2020

We will ask ourselves what an array is and go into some detail about Julia's abstract arrays.

[tcnymex]

So an array is like a function?

Just like "plus" is a function that takes arguments called "numbers", and returns a specific result that is is the sum of the arguments
... an array is a function that takes arguments called "integer indices" and returns a specific result.