matlab输入数据解多元方程组,matlab 求解带参数多元方程组问题

妖狐艹你老母 2023-01-13 10:27 159阅读 0赞

有一个复杂的带参数的多源方程组，按照solve()进行求解，但是结果提示：

Explicit solution could not be found

请问这种方法有问题吗，还有其他的解决方案吗？谢谢大家

>> clear all

>> syms T3 T4 T5 T7 T8 T9 T10 T11 T12 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 M12 M13 M14 M15 M16 M17 M18 M19 M20 M21 M22 M23 M24 M25 M26 M27 M28 M29 M30 M31 M32 M33 M34 M35 M36 M37 M38 M39 M40 M41 M42;

>> \[M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16,M17,M18,M19,M20,M21,M22,M23,M24,M25,M26,M27,M28,M29,M30,M31,M32,M33,M34,M35,M36,M37,M38,M39,M40,M41,M42\]=solve('M0\*T3=M1\*T4','M1\*T4=M2\*T5','M2\*T5=(T2+T8+T9+T12)\*M3','T7\*M3=M4\*(T8+T9+T12)','T8\*M3=(T7+T9+T9+T12)\*M5','T9\*M3=(T7+T8+T11+T12)\*M6','T12\*M3=(T7+T8+T9)\*M7','T8\*M4=(T9+T9+T12)\*M8','T9\*M4+T7\*M6=(T8+T9+T12)\*M9','T12\*M4+T7\*M7=(T8+T9)\*M10','T7\*M5=(T9+T9+T12)\*M11','T9\*M5=(T7+T9+T11+T12)\*M12','T9\*M5+T8\*M6=(T7+T9+T11+T12)\*M13','T12\*M14+T8\*M7=(T7+T9+T9)\*M14','T8\*M6=(T12+T8+T7)\*M15','T12\*M6+T7\*M7=(T11+T8+T7)\*M16','T7\*M13+T9\*M8+T8\*M9+T9\*M11=(T9+T11+T12)\*M17','T7\*M12+T9\*M8+T9\*M11=(T9+T11+T12)\*M18','T12\*M8+T8\*M10+T12\*M11+T7\*M14=(T9+T9)\*M19','T9\*M9+T7\*M5=(T12+T8)\*M20','T7\*M16+T12\*M9+T9\*M10=(T8+T11)\*M21','T9\*M13+T9\*M25+T9\*M12+T9\*M23=(T7+T11+T12)\*M22','T11\*M12=(T9+T7+T12)\*M23','T12\*M12+T9\*M14=(T9+T11+T7)\*M24','T8\*M15+T11\*M13=(T12+T7+T9)\*M25','T9\*M14+T12\*M13+T8\*M16=(T11+T9+T7+T7)\*M26','T11\*M16+T12\*M15=(T7+T8)\*M27','T9\*M31+T9\*M29+T9\*M18+T7\*M22+T9\*M17=(T11+T12)\*M28','T7\*M25+T12\*M20+T9\*M19+T11\*M17=(T12+T9)\*M29','T9\*M19+T12\*M17+T8\*M21+T7\*M23+T7\*M26=(T9+T9)\*M30','T11\*M18=(T9+T12)\*M31','T9\*M19+T12\*M18+T7\*M24=(T9+T11)\*M32','T11\*M21+T7\*M26+T12\*M20+T7\*M27=T8\*M33','T11\*M22=(T7+T12)\*M34','T9\*M37+T9\*M36+T9\*M26+T12\*M22+T9\*M24=(T11+T7)\*M35','T11\*M24+T8\*M27+T12\*M23=(T7+T9)\*M36','T12\*M25+T11\*M26=(T9+T7)\*M37','T7\*M34+T11\*M28=T12\*M38','T9\*M32+T9\*M41+T9\*M40+T7\*M36+T9\*M30+T12\*M28=T11\*M39','T7\*M36+T8\*M33+T7\*M37+T11\*M32+T9\*M30+T12\*M29=T9\*M40','T12\*M31=T9\*M41','T12\*M34+T11\*M35=T7\*M42','M1+M2+M3+M4+M5+M6+M7+M8+M9+M10+M11+M12+M13+M14+M15+M16+M17+M18+M19+M20+M21+M22+M23+M24+M25+M26+M27+M28+M29+M30+M31+M32+M33+M34+M35+M36+M37+M38+M39+M40+M41+M42=1')

警告: Explicit solution could not be found.

> In solve at 179

M1 =

\[ empty sym \]

M2 =

\[\]

M3 =

\[\]

M4 =

\[\]

M5 =

\[\]