Problem 45177. Summing Rows and Columns
Create a matrix y of size (n+1) whose last column's elements are the summation of the elements of all the other columns and last row's elements are the summation of the elements of all the other rows; where 'n' is the size of the input matrix 'x'.
For example
x = [ 1 2 3 4 5 6 7 8 9 ]
then
y = [ 1 2 3 6 4 5 6 15 7 8 9 24 12 15 18 45 ]
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