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yourmav

铁虫 (初入文坛)

[求助] 求高版本1stopt,微分方程参数拟合,代码已写好 已有1人参与

rt。我自己用下的试用版无法拟合出结果,不知道是代码问题还是软件问题。求大神帮忙拟合下。多谢。
代码如下:
Title "Lime";
Parameters e, g, f, h;
Variable t, y1, y2, y3;
SharedModel;
ODEFunction y1'=e*((52.1-y1)*0.1)^f/(1+g*(y1)^h);
y2'=e*((52.1-y2)*0.2)^f/(1+g*(y2)^h);
y3'=e*((52.1-y3)*0.5)^f/(1+g*(y3)^h);
Data;
t=0.10,24.00,72.00,120.00,240.00;
y1=0.10,8.00,15.00,17.76,18.50;
y2=0.10,16.98,22.25,23.49,24.25;
y3=0.10,27.07,35.19,36.13,35.70;
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my girl
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静水流深0103

铁虫 (初入文坛)

楼主找到有人帮你跑了吗
2楼2017-01-30 14:26:51
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dingd

铁杆木虫 (职业作家)

【答案】应助回帖

e        0.0035772026416601
g        0.0001078706321029
f        3.04171311741531
h        3.83473539954304
3楼2017-01-30 22:03:00
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