Error using interpreted matlab function block in Simulink

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Pu
Pu 2014-12-1
编辑： Pu 2014-12-1
Since type "syms" is not supported in Matlab Function Block, so I have to use the interpreted Matlab Function Block, However, error occured on this Block when running Simulink. Is there any way to solve this? Thank you so much!!!
Below is the function I called in the interpreted Matlab Function Block.
function result= Solve(qt)
%r contains coordinates of every joint
r=zeros(27,1);
l=60;
%Joint 1-3
r(1)=sqrt(3)*l/4;
r(4)=-sqrt(3)*l/4;
r(5)=l/2;
r(7)=r(4);
r(8)=-l/2;
%Joint4
r(10)=sqrt(3)*l/4;
r(11)=-l/2;
r(12)=sqrt(3)*l/2;
%Joint5
r(13)=sqrt(3)*l/4;
r(14)=l/2;
r(15)=sqrt(3)*l/2;
%Joint6
r(16)=-sqrt(3)*l/4;
r(17)=0;
r(18)=sqrt(3)*l/2;
%Joint7
r(19)=r(1);
r(20)=r(2);
r(21)=sqrt(3)*l;
%Joint8
r(22)=r(4);
r(23)=r(5);
r(24)=sqrt(3)*l;
%Joint9
r(25)=r(7);
r(26)=r(8);
r(27)=sqrt(3)*l;
guess=r;
A = sym('A', [3 9]);
Coor=sym('B',[27,1]);
%Lower Octahedral
Coor(1)=transpose(A(:,4)-A(:,3))*(A(:,4)-A(:,3))-l^2;
Coor(2)=transpose(A(:,4)-A(:,1))*(A(:,4)-A(:,1))-l^2;
Coor(3)=transpose(A(:,4)-A(:,5))*(A(:,4)-A(:,5))-qt(1)^2;
Coor(4)=transpose(A(:,5)-A(:,1))*(A(:,5)-A(:,1))-l^2;
Coor(5)=transpose(A(:,5)-A(:,2))*(A(:,5)-A(:,2))-l^2;
Coor(6)=transpose(A(:,5)-A(:,6))*(A(:,5)-A(:,6))-qt(2)^2;
Coor(7)=transpose(A(:,6)-A(:,3))*(A(:,6)-A(:,3))-l^2;
Coor(8)=transpose(A(:,6)-A(:,2))*(A(:,6)-A(:,2))-l^2;
Coor(9)=transpose(A(:,6)-A(:,4))*(A(:,6)-A(:,4))-qt(3)^2;
%Upper Octahedral
Coor(10)=transpose(A(:,7)-A(:,4))*(A(:,7)-A(:,4))-l^2;
Coor(11)=transpose(A(:,7)-A(:,5))*(A(:,7)-A(:,5))-l^2;
Coor(12)=transpose(A(:,7)-A(:,8))*(A(:,7)-A(:,8))-qt(4)^2;
Coor(13)=transpose(A(:,8)-A(:,5))*(A(:,8)-A(:,5))-l^2;
Coor(14)=transpose(A(:,8)-A(:,6))*(A(:,8)-A(:,6))-l^2;
Coor(15)=transpose(A(:,8)-A(:,9))*(A(:,8)-A(:,9))-qt(5)^2;
Coor(16)=transpose(A(:,9)-A(:,6))*(A(:,9)-A(:,6))-l^2;
Coor(17)=transpose(A(:,9)-A(:,4))*(A(:,9)-A(:,4))-l^2;
Coor(18)=transpose(A(:,9)-A(:,7))*(A(:,9)-A(:,7))-qt(6)^2;
%r1 r2 & r3 are known
Coor(19)=A(1,1)-sqrt(3)*l/4;
Coor(20)=A(2,1);
Coor(21)=A(3,1);
Coor(22)=A(1,2)+A(1,1);
Coor(23)=A(2,2)-l/2;
Coor(24)=A(3,2);
Coor(25)=A(1,3)-A(1,2);
Coor(26)=A(2,3)+l/2;
Coor(27)=A(3,2);
%Use fsolve to solve the system based on current value of q
[result, fval, exit, output]=fsolve(Coor,guess);
% result
% fval
% eqns(guess)
% output
end

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