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  1. sumc = @(m) [m; sum(m)];
  2. sumr = @(m) [m sum(m,2)];
  3. f = @(m) sumc(sumr(m));
  4. f([1:3; 4:6])
  5.  
  6. g = @(m) [m sum(m,2); sum(m) sum(m(:))];
  7. g([1:3; 4:6])
Success #stdin #stdout 0.32s 411712KB
stdin
Standard input is empty
stdout
ans =

    1    2    3    6
    4    5    6   15
    5    7    9   21

ans =

    1    2    3    6
    4    5    6   15
    5    7    9   21