The Beauty of a Transpose Operator

Conner seys: In a p l, everything is an array. A one rank array is just like on a list or a vector, a list of numbers. A two rank array is a matrix. A three rank array is,. you know, a cube of numbers, if you will. And it keeps going on like that. Even like a single number is technically like a single element. There is no such thing as other data structures like a hash map and so on.