function y=g(x)
y=x^5-3*x^3-2*x^2+2;

p0=1;
tol=10^-6;
max=100000;
function [k,p,err,p]=fixpt('g',p0,tol,max)
p(1)=p0;
for k=2:max
p(k)=feval(g,p(k-1));
err=abs(p(k)-p(k-1));
relerr=err/(abs(p(k))+eps);
p=p(k);
if (err<tol)| (relerr<tol),break; end
end
if k==max
disp('maximum number of iterations exceeded')
end
p=p';
为什么求不出结果,说什么Strings passed to EVAL cannot contain function declarations.
请问这是怎么回事,希望大家帮助