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T大仁

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[求助] 求解復(fù)雜含對(duì)數(shù)的一元二次方程式已有1人參與

這里有一個(gè)復(fù)雜含對(duì)數(shù)的一元二次方程式：
1121.46*y-log10(y)-178826.58*y*0.0005+80199.68*y^2+600*x*y=
=2*log10(x)+4*log10(0.0005)-4.87*x-430.35*0.0005+350217.39*z^2+978.14*x*0.0005-0.04*x^2+20.54
取z=0.0005；x=0.0001~0.1，間隔0.0001。
能否求得y=f(x)的函數(shù)圖像（離散點(diǎn)構(gòu)成的連續(xù)圖像）？

或者求某一簡(jiǎn)化式：
1121.46*y-log10(y)==2*log10(x)-4.87*x+7.12
x=0.0001~0.1，間隔0.0001。
能否求得y=f(x)的函數(shù)圖像（離散點(diǎn)構(gòu)成的連續(xù)圖像）？

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1樓 2021-05-07 21:44:54

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T大仁

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送紅花一朵

引用回帖:

4樓: Originally posted by zyh700600 at 2021-05-09 18:50:23
計(jì)算結(jié)果：

取z=0.0005；

x=0.023~0.1，間隔0.001

ans =

0.023000000000000
0.024000000000000
0.025000000000000
0.026000000000000
0.027000000000000
0.028000000000000
...

您好！
能看一下您使用的代碼嗎？
萬(wàn)分感謝。

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5樓2021-05-13 09:19:42

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查看全部 9 個(gè)回答

T大仁

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先感謝各位數(shù)學(xué)大佬！謝謝~

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2樓2021-05-07 21:49:14

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zyh700600

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【答案】應(yīng)助回帖

感謝參與，應(yīng)助指數(shù) +1

計(jì)算結(jié)果：
x=0.023~0.1，間隔0.001

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3樓2021-05-09 18:48:32

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zyh700600

金蟲(chóng) (小有名氣)

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專業(yè): 金融工程

【答案】應(yīng)助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
T大仁: 金幣+50, ★★★很有幫助 2021-05-13 09:24:27

計(jì)算結(jié)果：

取z=0.0005；

x=0.023~0.1，間隔0.001

ans =

0.023000000000000
0.024000000000000
0.025000000000000
0.026000000000000
0.027000000000000
0.028000000000000
0.029000000000000
0.030000000000000
0.031000000000000
0.032000000000000
0.033000000000000
0.034000000000000
0.035000000000000
0.036000000000000
0.037000000000000
0.038000000000000
0.039000000000000
0.040000000000000
0.041000000000000
0.042000000000000
0.043000000000000
0.044000000000000
0.045000000000000
0.046000000000000
0.047000000000000
0.048000000000000
0.049000000000000
0.050000000000000
0.051000000000000
0.052000000000000
0.053000000000000
0.054000000000000
0.055000000000000
0.056000000000000
0.057000000000000
0.058000000000000
0.059000000000000
0.060000000000000
0.061000000000000
0.062000000000000
0.063000000000000
0.064000000000000
0.065000000000000
0.066000000000000
0.067000000000000
0.068000000000000
0.069000000000000
0.070000000000000
0.071000000000000
0.072000000000000
0.073000000000000
0.074000000000000
0.075000000000000
0.076000000000000
0.077000000000000
0.078000000000000
0.079000000000000
0.080000000000000
0.081000000000000
0.082000000000000
0.083000000000000
0.084000000000000
0.085000000000000
0.086000000000000
0.087000000000000
0.088000000000000
0.089000000000000
0.090000000000000
0.091000000000000
0.092000000000000
0.093000000000000
0.094000000000000
0.095000000000000
0.096000000000000
0.097000000000000
0.098000000000000
0.099000000000000
0.100000000000000

y1

ans =

0.000428713851598
0.000561483313132
0.000635316300784
0.000693880390090
0.000743917594016
0.000788175699720
0.000828114817960
0.000864642047227
0.000898358261380
0.000929707768431
0.000959012434067
0.000986534812439
0.001012475338084
0.001036998471334
0.001060249685154
0.001082342494041
0.001103377284352
0.001123440755461
0.001142608481171
0.001160944993554
0.001178513229174
0.001195363130017
0.001211541580204
0.001227090768876
0.001242048831050
0.001256450378584
0.001270326943022
0.001283705694556
0.001296616655270
0.001309082144537
0.001321124584646
0.001332764703447
0.001344021705652
0.001354913423541
0.001365456448855
0.001375666248702
0.001385557267809
0.001395143019071
0.001404436164010
0.001413448584492
0.001422191446857
0.001430675259431
0.001438908900273
0.001446903896482
0.001454667894689
0.001462209241307
0.001469535839066
0.001476655177077
0.001483574359598
0.001490300132283
0.001496838906212
0.001503196779893
0.001509379559467
0.001515392777280
0.001521241708985
0.001526931389307
0.001532466626605
0.001537852016337
0.001543091953525
0.001548190644314
0.001553152116697
0.001557980230483
0.001562678686579
0.001567251035620
0.001571700686027
0.001576030911528
0.001580244858174
0.001584345074773
0.001588335481300
0.001592218339348
0.001595996345324
0.001599672098139
0.001603248102683
0.001606726774305
0.001610110443028
0.001613401357525
0.001616601688860
0.001619713534014

y2

ans =

0.000356798012292
0.000258328492046
0.000216937605151
0.000189116694478
0.000168260158354
0.000151753963660
0.000138242389759
0.000126921608182
0.000117267796761
0.000108928971209
0.000101641980579
0.000095219242823
0.000089514700052
0.000084416095787
0.000079829478326
0.000075684259423
0.000071920936796
0.000068490377218
0.000065351603488
0.000062471498231
0.000059817801253
0.000057367261207
0.000055098394745
0.000052992624117
0.000051033802337
0.000049207825856
0.000047502319898
0.000045906380814
0.000044410363589
0.000043005705443
0.000041684778474
0.000040440765868
0.000039268523069
0.000038160509082
0.000037112865519
0.000036121126209
0.000035181237293
0.000034289518874
0.000033442623334
0.000032637499045
0.000031871358715
0.000031141651704
0.000030446039735
0.000029782375522
0.000029148683923
0.000028543145264
0.000027964080554
0.000027409938352
0.000026879283061
0.000026370784482
0.000025883208474
0.000025415408575
0.000024966318485
0.000024534945297
0.000024120363400
0.000023721708977
0.000023338175019
0.000022969006824
0.000022613497900
0.000022270986252
0.000021940850997
0.000021622509287
0.000021315413495
0.000021019048651
0.000020732930087
0.000020456601289
0.000020189631928
0.000019931616040
0.000019682170372
0.000019440932840
0.000019207561127
0.000018981731377
0.000018763601871
0.000018551949697
0.000018346946880
0.000018148353081
0.000017955921311
0.000017769416150

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T大仁

4樓2021-05-09 18:50:23

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