level 2
pixy1017
楼主
如下,输入到1stopt 5.5 trial 里面,运行不了。求各位前辈指点啊:
Parameter k1,k2,k3 ;
Variable t,x1,x2,x4;
ODEFunction
x1'=-k1*x1+k2*x2*x3;
x2'=k1*x1-k2*x2*x3;
x3'=k1*x1-k2*x2*x3-k3*x3;
x4'=k3*x3
data;
010000
1.4769597.492312.507692.50769
2.6791796.330773.669233.66923
3.2277895.615384.384624.38462
3.8122295.769234.230774.23077
4.6777894.692315.307695.30769
6.0113994.307695.692315.69231
7.342593.230776.769236.76923
9.0950392.27.87.8
10.702591.538468.461548.46154
12.9790.839.179.17
14.4680690.307699.692319.69231
2019年02月13日 07点02分
1
Parameter k1,k2,k3 ;
Variable t,x1,x2,x4;
ODEFunction
x1'=-k1*x1+k2*x2*x3;
x2'=k1*x1-k2*x2*x3;
x3'=k1*x1-k2*x2*x3-k3*x3;
x4'=k3*x3
data;
010000
1.4769597.492312.507692.50769
2.6791796.330773.669233.66923
3.2277895.615384.384624.38462
3.8122295.769234.230774.23077
4.6777894.692315.307695.30769
6.0113994.307695.692315.69231
7.342593.230776.769236.76923
9.0950392.27.87.8
10.702591.538468.461548.46154
12.9790.839.179.17
14.4680690.307699.692319.69231