hello everyone,
I struggle on this exercise:
define a function col(mat, j) allowing to retrieve a column of the matrix. For example col(M, 1) will return [2, 6, 10].
here's the matrix (list of list created with loops):
M = [[1, 2, 3, 4],
[5, 6, 7, 8],
[9, 10, 11, 12]]
so far I wrote:
can you help me understand what's wrong with my code?
I use Python 3 and Jupyter Notebook
Thanks in advance,
Leyo
I struggle on this exercise:
define a function col(mat, j) allowing to retrieve a column of the matrix. For example col(M, 1) will return [2, 6, 10].
here's the matrix (list of list created with loops):
M = [[1, 2, 3, 4],
[5, 6, 7, 8],
[9, 10, 11, 12]]
so far I wrote:
def col(mat,j): for i in range(3): #search lines for j in range(4): #search columns return M[:][j] #return all elements from i column col(0,1)
Output:[1, 2, 3, 4]
I don't understand what to do with the parameter matcan you help me understand what's wrong with my code?
I use Python 3 and Jupyter Notebook
Thanks in advance,
Leyo
Larz60+ write Feb-22-2022, 04:56 PM:
Please post all code, output and errors (it it's entirety) between their respective tags. Refer to BBCode help topic on how to post. Use the "Preview Post" button to make sure the code is presented as you expect before hitting the "Post Reply/Thread" button.
Fixed for you this time. Please use BBCode tags on future posts.
Please post all code, output and errors (it it's entirety) between their respective tags. Refer to BBCode help topic on how to post. Use the "Preview Post" button to make sure the code is presented as you expect before hitting the "Post Reply/Thread" button.
Fixed for you this time. Please use BBCode tags on future posts.