Error: Expression or statement is incomplete or incorrect

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Kevin
Kevin 2013-4-23
I'm working on minimizing an objective function using fmincon. Below I have included the objective function, as well as the constraints and gradient functions.
options=optimset('LargeScale','on','GradObj','off','GradConstr','off',...
'TolCon',1e-8,'TolX',1e-8);
Lb=[0.25,0.005]; Ub=[1.5;0.1]; % upper and lower bounds for x1 & x2
x0=[1.5;0.1]; % initial design pt.
[x,FunVal,ExitFlag,output]=fmincon('FinalProj_ObjAndGrad',x0,...
[],[],[],[],Lb,Ub,'FinalProj_ConstAndGrad',options)
function [ g,h,gg,gh ] = FinalProj_ConstAndGrad( x )
% Constraints and Gradients
x1=x(1); % do
x2=x(2); % t
g(1)=(184/(28125*pi^3*(x1-x2)*x2*((x1)^2/2-x1*x2+(x2)^2))+(x1*(563200+34865152/(5625*pi*(x1^4-(x1-2*x2)^4))))/(4375000*pi*((x1)^4-(x1-2*x2)^4)))-1;
g(2)=((272384)/(3515625*pi*(x1^4-(x1-2*x2)^4)))-0.1;
g(3)=(x1/x2)-92;
h=[ ]; %no equality constraints
% if nargout>2
% gg(1,1)=(x1*(34865152/(5625*pi*(x1^4-(x1-2*x2)^4))+563200))/...
%(4375000*pi*(x1^4-(x1-2*x2)^4))-(368*(3*x1^2-6*x1*x2+4*x2^2))/...
%(28125*pi^3*x2*(x2-x1)^2*(x1^2-2*x1*x2+2*x2^2)^2);
% gg(2,1)=(x1*(34865152/(5625*pi*(x1^4-(x1-2*x2)^4))+563200))/...
%(4375000*pi*(x1^4-(x1-2*x2)^4))-(368*(x1-2*x2)^3)/...
%(28125*pi^3*x2^2*(x1-x2)^2*(x1^2-2*x1*x2+2*x2^2)^2);
% gh=[ ];
end
function [ f, gf ] = FinalProj_ObjAndGrad( x )
% Objective function and gradient for minimizing weight of column
x1=x(1); % do
x2=x(2); % t
f=(400000*pi)*(x1^2-(x1-2*x2)^2); %weight of support column,
if nargout >1
gf(1,1)=1600000*pi*x2;
gf(2,1)=16000000*pi*(x1-2*x2);
end
When the first m-file is run the following error appears:
Error using feval Error: File: FinalProj_ConstAndGrad.m Line: 5 Column: 6 Expression or statement is incomplete or incorrect.
Error in fmincon (line 681) [ctmp,ceqtmp] = feval(confcn{3},X,varargin{:});
Error in Final_Proj (line 11) [x,FunVal,ExitFlag,output]=fmincon('FinalProj_ObjAndGrad',x0,...
Caused by: Failure in initial user-supplied nonlinear constraint function evaluation. FMINCON cannot continue.

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