lang/basic/test/opg3.b.g

   1 n              n2             n3             1/n            square root
   2  1              1              1              1              1
   3  2              4              8              0.5            1.414214
   4  3              9              27             0.333333       1.732051
   5  4              16             64             0.25           2
   6  5              25             125            0.2            2.236068
   7  6              36             216            0.166667       2.44949
   8  7              49             343            0.142857       2.645751
   9  8              64             512            0.125          2.828427
  10  9              81             729            0.111111       3
  11  10             100            1000           0.1            3.162278
  12  11             121            1331           0.090909       3.316625
  13  12             144            1728           0.083333       3.464102
  14  13             169            2197           0.076923       3.605551
  15  14             196            2744           0.071429       3.741657
  16  15             225            3375           0.066667       3.872983
  17  16             256            4096           0.0625         4
  18  17             289            4913           0.058824       4.123106
  19  18             324            5832           0.055556       4.242641
  20  19             361            6859           0.052632       4.358899
  21  20             400            8000           0.05           4.472136