NumPy Array Iterating

You can go through NumPy arrays in two main ways:

1. Using a for loop: This is the easiest way to go through each item in a NumPy collection. You can just do a loop over the array, and each time you do that, you'll be able to reach the current element.

2. Indexing with a for loop: You can also use a for loop and indexing to go through the parts of a NumPy array. This method works well when you need to get both the number and the index of the current element.

Both methods go through the elements of the array in row-major order, which is the usual way to order things in C. This means that the elements are gone through in a way that first fills up one row of the array and then goes on to the next row.

Besides these simple ways, NumPy also has the nditer function for more complex iteration. There are many useful tools like nditer that give you more freedom when iterating over arrays.

nditer is the way to go if you need more advanced features for going through NumPy collections. But a simple for loop, with or without numbering, will do for most simple situations.