Representing a matrix

Question

I wonder how I can represent a matrix using linked lists in a way that I can loop through the columns/rows easily
What I have intended now is:
I have a class
Node(self, value, right, down):
Where right represents the columns and down rows
Then I have another class Matrix(self, numrows, numcols, defaultvalue=0)
How can I represent it so that i can easily set a value a given row and column, or get a specific row with its values?
Thanks!

Answer 1

Why would you want to do that? Frankly inefficient way of manipulating a matrix.

Answer 2

It is, but it's at the same time a great way to practice and know more about linked lists.
An easier approach would be creating a list inside a list, but it would end up using too much space as compared to linked lists