Initialize a matrix (that is, a list of lists) in Python
1607
List of lists changes reflected across sublists unexpectedly
81761
Construct matrix of ones and zeros based on sequences
123925
Grabbing the independent columns of a matrix A
154659
What's the best way to initialize a dict of dicts in Python?
19541
What is the best way to iterate over multiple lists at once?
126943
Instantiate objects in a List and use it
25893
Ruby Array Initialization
19513
Initialization of an ArrayList in one line
139161
Extract matrix from a system of linear equations
8045
Python List vs. Array - when to use?
131458
Should I declare/Initialize ArrayLists as Lists, ArrayLists, or ArrayLists of
22726
What is the most efficient way to add rows and columns to a matrix?
108621
How do I create an empty array/matrix in NumPy?
156979
Convert a matrix to a 1 dimensional array
82102
Extracting matrix rows when one of its elements is part of a list (without a loop)
24059
How to set up the matrix in data generation in R?
138567
python (scipy): Resizing a sparse matrix