square number= 1 1
CASE 3: 2 1.414 1 0.4142
CASE 3: 3 1.732 1 0.7321
square number= 4 2
CASE 3: 5 2.236 2 0.2361
CASE 3: 6 2.449 2 0.4495
CASE 3: 7 2.646 2 0.6458
CASE 3: 8 2.828 2 0.8284
square number= 9 3
10 3.162 3
square number= 16 4
17 4.123 4
square number= 25 5
26 5.099 5
27 5.196 5
square number= 36 6
37 6.083 6
38 6.164 6
square number= 49 7
50 7.071 7
51 7.141 7
square number= 64 8
65 8.062 8
66 8.124 8
67 8.185 8
square number= 81 9
82 9.055 9
83 9.11 9
84 9.165 9
i is greater than 90, break the for loop, i= 91