求帮忙拟合数据这里给出X,Y 希望帮忙拟合出y=f(x)的函数关系 x={3.81923.63225.16845.370

求帮忙拟合数据
这里给出X,Y 希望帮忙拟合出y=f(x)的函数关系
x={3.8192
3.6322
5.1684
5.3700
5.5440
5.5748
5.5440
5.5180
5.4912
5.4668
5.6052
5.7400
5.8354
5.9466
5.7970
5.4058
5.2688
5.1330
4.9632
4.6980
4.3940
4.1656
3.9750
3.7884
3.6356
3.3880
3.2186
3.0734
2.7588
2.7816
2.7032
2.6250
2.5654
2.5220
2.5460
2.5840
2.6496
2.7048
2.6730
2.5152
2.3920
2.3140
2.3056
2.2532
2.1580
2.1222
2.0748
2.1216
2.1646
2.1920
2.1760
2.1600
2.1172
2.0636
2.0368
1.9832
1.9710
1.9584
1.9596
1.9738
2.1024
2.2910
2.3856
2.3564
2.2876
2.2188
2.1168
2.3064
1.9764
1.9118
1.8720
1.8088
1.7850
1.7850
1.7612
1.7374
1.7760
1.8392
1.9360
1.9588
1.9380
1.9140
1.8480
1.7600
1.6168
1.4774
1.3430
1.2300
1.1200
1.0560
0.9920
0.9280
0.9184
0.8964
0.8736
0.8670
0.8500
0.8428
0.8428
0.8352
0.8448
0.8448
0.8448
0.8352
0.8256}
y={
-0.8340
0.4320
-1.0013
-0.9541
-0.8684
-0.9045
-0.8684
-0.7659
-0.6640
-0.4965
-0.3685
-0.3729
-0.5472
-0.9688
-1.0944
-0.9240
-0.9780
-1.0304
-1.1095
-1.2051
-1.1661
-1.0767
-0.9656
-0.8587
-0.7317
-0.4959
-0.3048
-0.1488
0.1645
0.1888
0.3495
0.4600
0.5928
0.7491
0.8931
0.9471
0.9828
0.9440
0.8424
0.7945
0.8436
0.8979
0.9417
0.9765
1.0011
1.0600
1.1605
1.2412
1.2528
1.2369
1.2096
1.1825
1.1715
1.2027
1.2180
1.2480
1.2896
1.3312
1.4003
1.4280
1.5407
1.4784
1.3108
1.1373
1.0293
0.9245
0.8820
0.6727
0.8323
0.8400
0.8316
0.8385
0.8536
0.8536
0.8685
0.8832
0.8924
0.8865
0.8241
0.7035
0.5771
0.4531
0.3281
0.2256
0.1440
0.1032
0.0984
0.1099
0.1500
0.2044
0.2556
0.3036
0.3588
0.3973
0.4352
0.4624
0.4725
0.4995
0.4995
0.5265
0.5440
0.5440
0.5440
0.5265
0.5092} 号上只有十分了 毕业论文急用的

利用origin软件 将数据直接粘到表格中 plot--> line 即可