Extract a random submatrix of given type

Question:Extract a random submatrix of given type

Posted: vs140580 495 Product: Maple

February 17 2023

Having Matrix say A of dimensions n×m

Writing a function that

Will choose k columns of the matrix at

At random where one of the column that is column m is the last column of output matrix that is after choosing k columns from the first m-1 column

We append the column m as last column to the new random matrix and the function returns the new matrix M

Kind help

k can be any big number less than m-1

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