matlab求方程组问题L1=304.8;L2=101.6;L3=254.0;L4=177.8;th2=[0:1/36:2]*pi;options=optimset('display','off');form=1:length(th2)th34(m,:)=fsolve('fourbarposition',[11],options,th2(m),L2,L3,L4,L1);endw2=250;fori=1:length(th2)A=[-L3*sin(th34(i,1)

matlab求方程组问题

L1=304.8;L2=101.6;L3=254.0;L4=177.8;

th2=[0:1/36:2]*pi;

options=optimset('display','off');

form=1:length(th2)

th34(m,:)=fsolve('fourbarposition',[11],options,th2(m),L2,L3,L4,L1);

end

w2=250;

fori=1:length(th2)

A=[-L3*sin(th34(i,1))L4*sin(th34(i,2));L3*cos(th34(i:1))-L4*cos(th34(i,2))];

B=[w2*L2*sin(th2(i));-w2*L2*cos(th2(i))];

w=inv(A)*B;

w3(i)=w(1);

w4(i)=w(2);

end

plot(th2*180/pi,w3,th2*180/pi,w4);

就刚才哪错误,感激不尽!

Errorusing==>vertcat

Allrowsinthebracketedexpressionmusthavethesame

numberofcolumns.

Errorin==>D:MATLAB6p5shiyan.m

Online9==>A=[-L3*sin(th34(i,1))L4*sin(th34(i,2));L3*cos(th34(i:1))-L4*cos(th34(i,2))];