How to build a matrix in python?

Question

Declare a (n x n) matrix.

Answer 1

You can use the numpy module for that. It supports a matrix class.

import numpy as np
mx = np.matrix([[1,3],[8,7]])
print(mx)

>>>
[[1 3]
[8 7]]

Answer 2

def a(n,m):
matrix = [[i for i in range(n)] for j in range(m)]
return matrix

Answer 3

All matrices (I believe) can be implemented using 2D arrays so yeah, you can try that

Answer 4

@Kuba Siekierzynski
I need to declare a square matrix of order n and accept values in run time.