declare 2d matrix in python code example

Example 1: how to transpose a 2d list in python

import numpy as np

def func(my_matrix):

	# Making np array of the list
	my_matrix = np.array(my_matrix)

	# Find the transpose to get image vector in column
	my_matrix = my_matrix.transpose()
    
    return my_matrix

Example 2: 2d array python

array = [[value] * lenght] * height

//example
array = [[0] * 5] * 10

print(array)

Example 3: create a 2d array in python

def build_matrix(rows, cols):
    matrix = []

    for r in range(0, rows):
        matrix.append([0 for c in range(0, cols)])

    return matrix

if __name__ == '__main__':
    build_matrix(6, 10)

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Java Example