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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clc
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) D& @# F+ a$ r" F  o! F( T, Rsyms thetal1 thetal6 thetal4 thetal5 thetal8 s r
thetal1set=[90:1:120];
thetal2=348;
thetal3=12;
, D; ~$ Y) i8 x; V. [2 lthetal8=12;
thetal6=zeros(size(thetal1set));
thetal4=zeros(size(thetal1set));
5 F# t* K' r+ Y0 D5 y- U; v0 xthetal5=zeros(size(thetal1set));
thetal8=zeros(size(thetal1set));
  o8 h7 N4 N' N" S7 f9 Ys=zeros(size(thetal1set));
r=zeros(size(thetal1set));
a=0.55;
( n8 Y1 ?. w: }  }7 ~" F% U% Ob=0.89;
4 B: S2 f1 C, i9 w5 I5 P& zl1=0.19;
l2=0.38;
l4=1.007;
: J& R9 G( x% v: l# v: yl5=0.15;
l7=0.45;
6 w  w) |+ I. f) @3 G( Q9 d$ c7 x  ql8=0.22;
l9=0.18;
f2=2034/4*cos(12*2*pi/360)*0.4*2;
" f* ?7 v+ w' v) b% Ofor i=1:1:numel(thetal1set)
  U' S, n9 v' B1 o, `    thetal1=thetal1set(i);
    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);
: I8 y0 G* a* t$ o! D$ h; `( f    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;
: _- v' _: O. i" I, Q0 d    eq3=l7.*cos(thetal4*2*pi/360)+l9.*cos(thetal5*2*pi/360)+s.*cos(thetal3*2*pi/360)==b;
8 ]$ O1 Z/ P% j& m: W9 Z    eq4=l7.*sin(thetal4*2*pi/360)+l9.*sin(thetal5*2*pi/360)+s.*sin(thetal3*2*pi/360)==l8+a;
) U/ O; f3 o0 Y& [    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);
7 w# t5 u& n0 c; ~    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);
- _9 q: q3 U7 k' }5 @8 B( T1 v6 l    sol=vpasolve([eq1,eq2,eq3,eq4,eq5,eq6],[thetal6,thetal4,thetal5,thetal8,s,r])
    thetal6(i)=double(sol.thetal6);
    thetal4(i)=double(sol.thetal4);
    thetal5(i)=double(sol.thetal5);
    thetal8(i)=double(sol.thetal8);
   s(i)=double(sol.s);
7 o& c. }4 x9 E1 U   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));
    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)))));
: |% N8 X) R1 h' z    F=F1*l1*sin(thetal7)/(l2*sin(pi-thetal1*2*pi/360));
end
" w( B# }: X# X- {/ \plot(thetal1,F)
xlabel('角度/。');
ylabel('缓解力/N');
( f: q2 B/ u& I2 thold on
grid on


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modengxian111

问题解决了吗