最近在学Applied Computational Economics and Finance这本书，里面的例子都是matlab程序代码，给出来了已经，但是CONTINUOUS STATE MODELS - METHODS这一章节，运行那些matlab命令怎么出不来结果，有谁学过这本书么???
命令形如function out = func(flag,s,x,e,price,kbar,gamma);
k = s(:,1); a = s(:,2);
switch flag
    case 'f';
out = price*(50-2.5*a-2.5*a.^2).*(1-x)+(price*50-k).*x;
    case 'g';
out(:,1) = kbar + gamma*(k-kbar) + e;
out(:,2) = min(a+1,10).*(1-x) + x;
end
哪位大哥看得懂？