根號一等于根號一,
根號二等于根號二,
根號三等于根號三.
你是不要求根號的具體值?我現(xiàn)編了一個程序：
sqrt(1)=1.000
sqrt(2)=1.414
sqrt(3)=1.732
sqrt(4)=2.000
sqrt(5)=2.236
sqrt(6)=2.449
sqrt(7)=2.646
sqrt(8)=2.828
sqrt(9)=3.000
sqrt(10)=3.162
sqrt(11)=3.317
sqrt(12)=3.464
sqrt(13)=3.606
sqrt(14)=3.742
sqrt(15)=3.873
sqrt(16)=4.000
sqrt(17)=4.123
sqrt(18)=4.243
sqrt(19)=4.359
sqrt(20)=4.472
sqrt(21)=4.583
sqrt(22)=4.690
sqrt(23)=4.796
sqrt(24)=4.899
sqrt(25)=5.000
sqrt(26)=5.099
sqrt(27)=5.196
sqrt(28)=5.292
sqrt(29)=5.385
sqrt(30)=5.477
sqrt(31)=5.568
sqrt(32)=5.657
sqrt(33)=5.745
sqrt(34)=5.831
sqrt(35)=5.916
sqrt(36)=6.000
sqrt(37)=6.083
sqrt(38)=6.164
sqrt(39)=6.245
sqrt(40)=6.325
sqrt(41)=6.403
sqrt(42)=6.481
sqrt(43)=6.557
sqrt(44)=6.633
sqrt(45)=6.708
sqrt(46)=6.782
sqrt(47)=6.856
sqrt(48)=6.928
sqrt(49)=7.000
sqrt(50)=7.071
sqrt(51)=7.141
sqrt(52)=7.211
sqrt(53)=7.280
sqrt(54)=7.348
sqrt(55)=7.416
sqrt(56)=7.483
sqrt(57)=7.550
sqrt(58)=7.616
sqrt(59)=7.681
sqrt(60)=7.746
sqrt(61)=7.810
sqrt(62)=7.874
sqrt(63)=7.937
sqrt(64)=8.000
sqrt(65)=8.062
sqrt(66)=8.124
sqrt(67)=8.185
sqrt(68)=8.246
sqrt(69)=8.307
sqrt(70)=8.367
sqrt(71)=8.426
sqrt(72)=8.485
sqrt(73)=8.544
sqrt(74)=8.602
sqrt(75)=8.660
sqrt(76)=8.718
sqrt(77)=8.775
sqrt(78)=8.832
sqrt(79)=8.888
sqrt(80)=8.944
sqrt(81)=9.000
sqrt(82)=9.055
sqrt(83)=9.110
sqrt(84)=9.165
sqrt(85)=9.220
sqrt(86)=9.274
sqrt(87)=9.327
sqrt(88)=9.381
sqrt(89)=9.434
sqrt(90)=9.487
sqrt(91)=9.539
sqrt(92)=9.592
sqrt(93)=9.644
sqrt(94)=9.695
sqrt(95)=9.747
sqrt(96)=9.798
sqrt(97)=9.849
sqrt(98)=9.899
sqrt(99)=9.950
sqrt(100)=10.000