def matrices:
  [ [1, 2],
    [3, 4]],

  [ [-2, 2, -3],
    [-1, 1,  3],
    [ 2, 0, -1]],

  [ [ 1,  2,  3,  4],
    [ 4,  5,  6,  7],
    [ 7,  8,  9, 10],
    [10, 11, 12, 13]],

  [ [ 0,  1,  2,  3,  4],
    [ 5,  6,  7,  8,  9],
    [10, 11, 12, 13, 14],
    [15, 16, 17, 18, 19],
    [20, 21, 22, 23, 24]]
;

"Determinants: ", (matrices | det),
"Permanents:   ",  (matrices | perm)