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小木虫论坛-学术科研互动平台 » 专业学科区 » 数理科学综合 » 求解复杂含对数的一元二次方程式
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T大仁

木虫 (正式写手)

[求助] 求解复杂含对数的一元二次方程式 已有1人参与

这里有一个复杂含对数的一元二次方程式：
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，间隔0.0001。
能否求得y=f(x)的函数图像（离散点构成的连续图像）？


或者求某一简化式：
1121.46*y-log10(y)==2*log10(x)-4.87*x+7.12
x=0.0001~0.1，间隔0.0001。
能否求得y=f(x)的函数图像（离散点构成的连续图像）？
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zZ
1楼 2021-05-07 21:44:54
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zyh700600

金虫 (小有名气)

【答案】应助回帖

引用回帖:
5楼: Originally posted by T大仁 at 2021-05-13 09:19:42
您好 ！
能看一下您使用的代码吗？
万分感谢。...

上面的结果是用本人自编的小程序计算得到的。
因不太成熟，不便提供。

如果你需要间隔0.0001的结果，请留下电子邮箱。
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T大仁
6楼2021-05-15 10:40:31
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T大仁

木虫 (正式写手)
先感谢各位数学大佬！谢谢~
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zZ
2楼2021-05-07 21:49:14
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zyh700600

金虫 (小有名气)

【答案】应助回帖

感谢参与，应助指数 +1
计算结果：
x=0.023~0.1，间隔0.001




求解复杂含对数的一元二次方程式
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3楼2021-05-09 18:48:32
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zyh700600

金虫 (小有名气)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
T大仁: 金币+50, ★★★很有帮助 2021-05-13 09:24:27
计算结果：

取z=0.0005；

x=0.023~0.1，间隔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楼2021-05-09 18:50:23
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