Answers for "multiply a multidimensional array in python"

python number of elements in multidimensional array

#Example for a 2D list
an_array = [[1, 2], [3, 4, 5]]
total_length = sum(len(row) for row in an_array)
print(total_length)
#OUTPUT: 5

two dimensional array python

# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5;
Matrix = [[0 for y in range(h)] for x in range(w)] 

Matrix[0][0] = 1
Matrix[0][6] = 3 # error! range... 
Matrix[6][0] = 3 # valid