- name: sample1
  in: |
    3 2
    1 1 1
    2 1 -3
    1 -1 2
  out: |
    2.3570226040

- name: sample2
  in: |
    6 7
    5 1 9
    4 4 -3
    8 -1 2
    0 1 -8
    4 0 -4
    2 -3 0
  out: |
    4.0126752298
