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// Check if a user specifies correct format of gradient function or not
function [y,g] = f(x)
y = -x(1)^2 - x(2)^2;
g = [-2*x(1)];
endfunction
x0=[2,1];
intcon = [1]
options = list("gradobj","ON");
// !--error 10000
// intfminunc_options: Expected 2 entries for input argument dy at input #12, but current dimensions are [1 1] instead.
// at line 54 of function Checkvector called by :
// at line 231 of function intfminunc called by :
// [xopt,fopt,exitflag,gradient,hessian]=intfminunc(f,x0,intcon,options)
// at line 9 of exec file called by :
// exec intfminuc_gradient4.sce
[xopt,fopt,exitflag,gradient,hessian]=intfminunc(f,x0,intcon,options)
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