这个程序报错，各位大神能帮我看下嘛，我是想求thetal1的变化和F的关系

玛克博罗

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* K. ^# B& \/ f1 @" Y0 Wclc
) \! @. n4 X/ Qclear
syms thetal1 thetal6 thetal4 thetal5 thetal8 s r
  r& n! Y4 x8 E" }& W- ^9 }: s: sthetal1set=[90:1:120];
thetal2=348;
6 q/ o7 {3 I. S- h2 q8 `thetal3=12;
thetal8=12;
: S, \6 N5 i- A- g% Z0 nthetal6=zeros(size(thetal1set));
thetal4=zeros(size(thetal1set));
$ H, v6 q+ c% h. Y8 n7 I5 K  ^thetal5=zeros(size(thetal1set));
thetal8=zeros(size(thetal1set));
s=zeros(size(thetal1set));
r=zeros(size(thetal1set));
# \6 I  q) s$ t3 ia=0.55;
b=0.89;
l1=0.19;
l2=0.38;
l4=1.007;
& O( ?8 S/ J2 [: Q0 el5=0.15;
l7=0.45;
# N) \6 ?+ C. `+ c  {3 b5 _7 yl8=0.22;
l9=0.18;
8 Q& Q$ _7 I+ N& ?6 {3 Yf2=2034/4*cos(12*2*pi/360)*0.4*2;
& g! s- ^9 |/ N4 a! L. T3 u: Afor i=1:1:numel(thetal1set)
    thetal1=thetal1set(i);
/ e& Q9 |8 J. t0 P- a/ z5 U3 b    eq1=l4.*cos(thetal6*2*pi/360)+l1.*cos(thetal1*2*pi/360)==l5.*cos(thetal4*2*pi/360)+s.*cos(thetal3*2*pi/360);
    eq2=l4.*sin(thetal6*2*pi/360)+l1.*sin(thetal1*2*pi/360)==l5.*sin(thetal4*2*pi/360)+s.*sin(thetal3*2*pi/360)-l8;
    eq3=l7.*cos(thetal4*2*pi/360)+l9.*cos(thetal5*2*pi/360)+s.*cos(thetal3*2*pi/360)==b;
  O$ s+ o) t8 ~! C& L    eq4=l7.*sin(thetal4*2*pi/360)+l9.*sin(thetal5*2*pi/360)+s.*sin(thetal3*2*pi/360)==l8+a;
- s0 a+ F9 Y8 h2 _( `; ?    eq5=l4.*cos(thetal6*2*pi/360)+l5.*cos(thetal4*2*pi/360+pi)+l1.*cos(thetal1*2*pi/360)==r.*cos(thetal8*2*pi/360);
    eq6=l4.*sin(thetal6*2*pi/360)+l5.*sin(thetal4*2*pi/360+pi)+l1.*sin(thetal1*2*pi/360)==r.*sin(thetal8*2*pi/360);
    sol=vpasolve([eq1,eq2,eq3,eq4,eq5,eq6],[thetal6,thetal4,thetal5,thetal8,s,r])
6 j* z; N- I) e8 h    thetal6(i)=double(sol.thetal6);
2 w4 c: D, F! h1 ]9 C" D+ }    thetal4(i)=double(sol.thetal4);
+ |' C( M1 U9 k( h& _" r    thetal5(i)=double(sol.thetal5);
    thetal8(i)=double(sol.thetal8);
   s(i)=double(sol.s);
   r(i)=double(sol.r);
    t=sqrt(l1^2+r^2-2*l1*r*cos(thetal1*2*pi/360+thetal8*2*pi/360));
    thetal7=acos((l4^2+t^2-l5^2)/(2*l4*t))+acos((l1^2+t^2-r^2)/(2*l1*t));
, N1 h  z( A; n# k" O* H    F1=f2*l7*sin(thetal4*2*pi/360-thetal3*2*pi/360)/((l5*sin(pi-acos((l4^2+l5^2-t^2)/(2*l4*l5)))));
    F=F1*l1*sin(thetal7)/(l2*sin(pi-thetal1*2*pi/360));
end
plot(thetal1,F)
) \# D% c" `5 L  t: Sxlabel('角度/。');
ylabel('缓解力/N');
  V% b; Z8 ?  T5 y6 x1 mhold on
grid on

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modengxian111

问题解决了吗