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求助,编写的矩阵微分方程组,然后在运行的时候报错:错误使用  +  矩阵维度必须一致。之后我将式子中求导的项去掉了,然后仍然要求维度必须一致,请问这该如何解决。程序如下:9 s0 l+ r) Q) t) Y. Y! k# L
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 ! c- M+ }5 Z( @- d/ s' ]; jTmh=0;Tmp=0;Mh=4100;Ihx=4032;Ihy=3461;Ihz=4980;Ihxy=31;Ihxz=637;Ihyz=26;Mp=1500;Ipx=117;Ipy=861;; a& Q9 _2 \/ H- H9 ]3 ^
 Ipz=754;Ipxy=0.615;Ipxz=152;Ipyz=14.5;4 ~- b+ t+ r  [+ U6 E! k& t1 z
 g=9.81;xh=0.237;yh=0.013;zh=0.404;xp=0.5;yp=0;zp=0;xhp=0;yhp=0;zhp=0.96;xch=0;ych=0;zch=0.9;u=12*sin((pi/3)*t);
 , E3 I. |4 |/ n" \8 hv=0;w=12*sin((pi/3)*t);
 2 n6 b- `5 \/ c  z3 yp=12*sin((pi/3)*t);q=12*sin((pi/3)*t);r=12*sin((pi/3)*t);theta=12*sin((pi/3)*t);varphi=12*sin((pi/3)*t);Ch=100;Cp=90;Kp=100;% a, y$ g/ i2 ^6 u0 B- \
 A=p*cos(x(1))*cos(x(2))+q*sin(x(1))*cos(x(2))-r*sin(x(2));
 ( r+ c5 h8 ^& ?/ iB=p*cos(x(1))*sin(x(2))+q*sin(x(1))*sin(x(2))+r*cos(x(2));( b5 {& G, U' n
 E=-p*sin(x(1))+q*cos(x(1));) m' e" F; ?9 |- [( v0 h4 M
 F=p*cos(x(1))+q*sin(x(1));
 + P. Y1 U+ Q5 G3 x6 H6 xe=-diff(p)*sin(x(1))+diff(q)*cos(x(1));
 - n, K2 d& _) E+ l& Rf=diff(p)*cos(x(1))+diff(q)*sin(x(1));
 1 _  i0 o$ [( d7 QTcwh=Mh.*xh.*(v+xch.*r-zch.*p+xh.*r-zh.*f)+Mh.*yh.*(u-r.*ych+q.*zch-r.*yh+zh.*e)+....; G2 y( r$ h2 U) X+ k0 O
 Mh.*zh.*F.*(u-r.*ych+q.*zch-r.*yh+zh.*E)+Mh.*zh.*E.*(v+r.*xch-p.*zch+r.*xh-zh.*F)-Mh.*xh.*F.*(w-q.*xch+p.*ych-E.*xh+yh.*F)...3 w0 R; R$ A% C8 M# Z. K
 -Mh.*yh.*E.*(w-q.*xch+p.*ych-E.*xh+yh.*F)...
 0 n0 v9 Z. u+ s: @    +Mp.*((diff(u)-diff(r).*ych+diff(q).*zch-diff(r).*yhp+zhp.*e).*(-yhp-cos(x(2)).*yp)+(diff(v)+xch.*diff(r)-zch.*diff(p)+...
 5 T$ q1 m" j4 ^. g6 v7 P    xhp.*diff(r)-zhp.*f+b.*xp-a.*zp).*(xhp+xp.*cos(x(2))+sin(x(2)).*zp)+(diff(w)-diff(q).*xch+diff(p).*ych-e.*xhp+yhp.*f-xp.*e+..., m  @% R( a2 t# E" x
 yp^2.*sin(x(2)).*a)-((u-r.*ych+q.*zch-r.*yhp+zhp.*E-yp.*B+zp.*E).*(-(zhp+zp).*F-yp.*sin(x(2)).*E)+(v+r.*xch-p.*zch+r.*xhp-zhp.*F+...  ) D& w# c' l* l, \
 xp.*B-zp.*A).*(-zhp.*E+xp.*sin(x(2)).*E-zp.*cos(x(2)).*E)+(w-q.*xch+p.*ych-E.*xhp+yhp.*F-xp.*E+yp.*A)*(xhp*F+yhp*E+xp*F+yp*cos(x(2))*E)))...
 ' l% [+ N, K' f- S    +Ihxz*f+Ihyz*e+Ihz*diff(r)-Ihx*E*F+Ihy*E*F+Ihxy*F^2+Ihxy*E^2-Ihxz*r*E+Ihyz*r*F-Ipx*sin(x(2))*a+Ipz*cos(x(2))*b-...  J. U9 ^, h9 j% S7 P. T
 Ipxy*sin(x(2))*e-Ipxz*sin(x(2))^2*f+Ipxz*cos(x(2))*a+Ipyz*cos(x(2))*e-Ipx*cos(x(2))*E*A+Ipy*E*F-Ipz*A*E*sin(x(2))-...
 / V! v. H4 \9 C# w7 _/ q    Ipxy*cos(x(2))*E^2+Ipxy*A*F-Ipxz*cos(x(2))*B*E-Ipxz*sin(x(2))*A*E+Ipyz*B*F-Ipyz*sin(x(2))*E^2;$ l/ O1 W' U. [/ _
 
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