the call load_file():
start time is 2021-04-29 11:51:58.006474
end time is 2021-04-29 11:51:58.317645
the total cost ：0:00:00.311171



the call transform_X():
start time is 2021-04-29 11:51:58.318640
end time is 2021-04-29 11:52:00.830085
the total cost ：0:00:02.511445



the call Gradient_Descent():
start time is 2021-04-29 11:52:01.253305
76.91837843644743
0.8881035812385548
0.7225133941984864
0.6304793794695348
0.5676749803270089
0.520572507197186
0.48330498782830966
0.45279102248768827
0.4271925475158374
0.4053169316184151
0.3863449072200794
0.36969017976502394
0.3549198892386251
0.3417063737424994
0.32979640433824786
0.31899078884286697
0.3091304245179139
0.30008651209574766
0.29175353684729916
0.2840441366751689
0.27688528555681574
0.27021541173427704
0.2639821917603741
0.25814084090164185
0.25265277327318236
0.24748454096142164
0.24260698615815904
0.23799455769568134
0.23362475572764763
0.22947767720911952
0.2255356413335944
0.2217828788894138
0.2182052730851695
0.21479014209901515
0.21152605566595864
0.20840267959814324
0.2054106433565999
0.20254142674694853
0.19978726256052104
0.19714105257432135
0.1945962947938742
0.19214702019943689
0.18978773755866346
0.18751338511344168
0.18531928814727955
0.18320112160173516
0.18115487704326486
0.1791768333912451
0.17726353090832525
0.17541174802931228
0.17361848066727498
0.17188092368781
0.17019645428627778
0.16856261703971284
0.16697711043631752
0.1654377747118824
0.16394258084494234
0.16248962058166566
0.16107709737783213
0.15970331815937022
0.15836668581496224
0.15706569234470683
0.15579891259782327
0.15456499854020833
0.1533626739994597
0.15219072984089294
0.1510480195332514
0.14993345506733613
0.14884600319474017
0.1477846819573717
0.146748557481508
0.1457367410128395
0.14474838617135566
0.14378268640703978
0.14283887263923847
0.14191621106422028
0.14101400111694912
0.14013157357441441
0.13926828878904987
0.138423535041832
0.1375967270056041
0.13678730431002487
0.13599473020029978
0.1352184902825556
0.13445809134932815
0.13371306027920518
0.13298294300516372
0.13226730354660451
0.13156572310050274
0.1308777991874641
0.13020314484882511
0.12954138789123898
0.12889217017547874
0.12825514694643889
0.12762998620155788
0.12701636809509365
0.12641398437587983
0.12582253785637512
0.1252417419109711
0.12467132000168506
0.12411100522949352
0.12356053990969484
0.12301967516979666
0.12248817056854398
0.12196579373478368
0.12145232002497039
0.12094753219818813
0.12045122010764493
0.11996318040766742
0.11948321627528824
0.11901113714557925
0.11854675845993859
0.11808990142659477
0.11764039279263298
0.11719806462690104
0.11676275411318712
0.11633430335310323
0.1159125591781454
0.115497372970426
0.11508860049161927
0.11468610171967676
0.11428974069289877
0.11389938536098078
end time is 2021-04-29 12:20:59.498509
the total cost ：0:28:58.245204



The GD algorithm running rounds are 12224
the optimal value we find is 0.11380657939847696