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caisinong

新虫 (初入文坛)

[求助] 微分方程组拟合用1stopt,不是不响应就是不开始。。大神们看下是哪里出错了?已有1人参与

Title "Type your title here";
//Parameters ;
//Variable ;
//Function ;
Variable s,i,d;
Parameters a,b,c;
Function s'=-a*s*i;
d'=c*i;
i'=a*s*i-b*i-c*i;
RawData;
11744951,29,20;
11744897,66,37;
11744873,83,44;
11744843,101,56;
11744803,122,75;
11744792,136,72;
11744779,146,75;
11744769,155,76;
11744767,157,76;
11744742,174,84;
11744719,186,95;
11744656,215,129;
11744628,236,136;
11744602,264,134;
11744610,270,120;
11744587,303,110;
11744591,309,100;
11744585,314,101;
11744540,339,121;
11744515,358,127;
11744494,373,133;
11744457,394,149;
11744393,406,201;
11744229,494,277;
11744139,557,304;
11744058,601,341;
11743978,635,387;
11743843,710,447;
11743702,768,530;
11743528,843,629;
11743460,904,636;
11743402,981,617;
11743269,1041,690;
11743122,1142,736;
11743029,1192,779;
11742866,1260,874;
11742836,1327,837;
11742708,1428,864;
11742584,1525,891;
11742403,1607,990;
11742293,1708,999;
11742225,1781,994;
11742194,1814,992;
11742129,1876,995;
11742083,1910,1007;
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caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

caisinong

新虫 (初入文坛)

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