#matrices are very useful in data science. matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] # this is a 2d list or matrice: each element in the list is another list ...
Defining a list in Python is easy—just use the bracket syntax to indicate items in a list, like this: list_of_ints = [1, 2, 3] Items in a list do not have to all be the same type; they can be any ...
# The function is expected to return a STRING. # The function accepts 2D_INTEGER_ARRAY matrix as parameter. # Input: [[1,2,3],[4,5,6],[7,8,9]] # output: [1,2,3,4,5,6 ...