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Alice_Chen新蟲 (小有名氣)
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[求助]
1stOpt求解擬合公式的參數(shù),速度慢,沒結果 已有1人參與
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懇請高手幫忙查看下下面這段代碼有沒有問題。 在1stOpt中運行,根據(jù)擬合公式求6個參數(shù),其中還有一個未知變量A0. 求解倒是沒有提示錯誤,可是就是一直沒結果,這是為啥? Title "Fitting1"; Constant m=2, G=0.98; Parameters bete[-5,5], kappa[0,10^5], k3[-10^13,0], c[0,10000], a[0,100000], alfa[0,1]; ParVariable A0; Variable omega, Ar, Ai; SharedModel; Function bete=k3*A0^3+6*k3*(sqrt(Ar^2+Ai^2))^2*A0+kappa*A0; m*G*Ar/2=-(3*k3*(sqrt(Ar^2+Ai^2))^2+3*k3*A0^2+kappa+a*omega^alfa*cos(pi/2*alfa)-m*omega^2)*(sqrt(Ar^2+Ai^2))^2; m*G*Ai/2=(c*omega+a*omega^alfa*sin(pi/2*alfa))*(sqrt(Ar^2+Ai^2))^2; Data; //omega Ar Ai 74.3351087321803 -3.14463568254839e-05 1.01327282201655e-05 76.2162944131498 -3.21974739009788e-05 1.01591242607615e-05 78.1452323024540 -3.33800670636978e-05 1.07232347079047e-05 80.1231790371541 -3.45673039370324e-05 1.07738154399966e-05 82.1507629357809 -3.63124095521570e-05 1.19660428276048e-05 84.2298689539267 -3.85057057208243e-05 1.34723858517477e-05 86.3617537286527 -4.06966871618542e-05 1.58230262439048e-05 88.5470455784898 -4.38220003089371e-05 1.95203729691381e-05 90.7882577775607 -4.72984393409057e-05 2.49194337505904e-05 93.0853903258656 -4.90479967981614e-05 3.00487920227191e-05 95.4415848160579 -4.93576472693656e-05 3.43321081679288e-05 97.8568412481378 -5.02714584857079e-05 3.75639149375647e-05 100.333044577697 -5.26710324414372e-05 4.13361897836752e-05 102.872708078859 -5.75039575342285e-05 4.74681671049929e-05 105.475831751624 -6.51140675739817e-05 7.13023519475345e-05 108.145557188644 -4.83316247058311e-05 0.000147077103547280 110.881884389921 -5.05902962982263e-06 0.000171712041924873 113.688583266638 2.40779646086773e-05 0.000169279093143338 116.565653818796 4.34998585549928e-05 0.000158976296486547 119.515609320517 5.58484827136901e-05 0.000146131984769546 122.540334727393 6.56172104369334e-05 0.000132489669107670 125.641086676486 7.34992538728020e-05 0.000118421795927543 128.821006760449 8.05564413134359e-05 0.000103475087100558 132.081351616345 8.10032037179227e-05 9.08289246495735e-05 135.424006199765 8.03975545826432e-05 7.88077395003196e-05 138.850855466300 7.78671121272006e-05 6.86841313913413e-05 142.365041008606 7.54183202198260e-05 5.91352986053226e-05 145.967819463743 7.21259315146524e-05 5.07449365219945e-05 149.662332424364 6.92812428954978e-05 4.26771092400470e-05 153.449836527532 6.57877040267655e-05 3.57769858262657e-05 157.332845047369 6.16095155689693e-05 3.04210495266473e-05 161.315127895059 5.72168111110589e-05 2.59115652439682e-05 165.397313389134 5.34127092370526e-05 2.14450568429811e-05 169.583171440777 4.93678606780574e-05 1.81452600931909e-05 173.875215324111 4.56242543392933e-05 1.51452624210845e-05 178.275329994729 4.21153975677620e-05 1.25955199163743e-05 |
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新蟲 (小有名氣)
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