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Question: A shorter cut for getting list of columns of matrix.

Question:A shorter cut for getting list of columns of matrix.

nm 8552 Maple 2020
matrix column
October 10 2020
1

To obtain the columns of matrix as a list, this is what I currently do

A:=Matrix([[1,2,1,3,2],[3,4,9,0,7],[2,3,5,1,8],[2,2,8,-3,5]]);

Now

[seq(A[..,i],i=1..4)];

Also this does it

map(i->A[..,i],[$1..4]);

Is there a "shorter" way to do it?  For example, A[..,[$1..4]] does not do it ofcourse, it just gives the matrix itself back.

 

 
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