CODEWITHSUNDEEP
python
user8671136
user8671136

Reputation:

How to create a matrix(without numpy library)

I created this one,

n,m = 3, 3

Matrix = [[0 for x in range(n)] for y in range(m)]

print (Matrix)

But I want the matrix to be more visual like a current one, every "list" behind each other

[2, 3, 4, 5, 6, 7]

[3, 4, 5, 6, 7, 8]

[4, 5, 6, 7, 8, 9]

[5, 6, 7, 8, 9, 10]

[6, 7, 8, 9, 10, 11]

[7, 8, 9, 10, 11, 12]

I'd like to use iterations like "for" to create it because it will be more easy to solve my problem.

Upvotes: 0

Views: 358

Answers (1)

Joe Iddon
Joe Iddon

Reputation: 20414

You can create a function to display it:

def display(m):
    for r in m:
        print(r)

So printing Matrix would normally result in:

[[0, 0, 0], [0, 0, 0], [0, 0, 0]]

but, if instead you do display(Matrix) after defining this function somewhere in your code, you will get:

[0, 0, 0]
[0, 0, 0]
[0, 0, 0]

where each row in the matrix is beneath each other.

And of course, if you didn't want to define a matrix populated with 0s, you can just hard code the contents:

Matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

which to show the function works, outputs the following from display(Matrix):

[1, 2, 3]
[4, 5, 6]
[7, 8, 9]

Note that it is probably better to call this a 2-dimensional list rather than a Matrix to avoid confusion.

Upvotes: 3

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