Matlab二分法使用出现错误，请指教！

[Amy_is_growing]

```
%二分法
function [xstar,index,it]=bisect(fun,a,b,ep)
if nargin<4
ep=0.00001;
end
fa=feval(fun,a);fb=feval(fun,b);
if fa*fb>0
xstar=[fa,fb];index=0;it=0;
return
end
k=0;
while abs(b-a)/2>=ep
x=(a+b)/2;
fx=feval(fun,x);
if fx*fa<0
b=x;fb=fx;
else
a=x;fa=fx;
end
k=k+1;
end
xstar=(a+b)/2;index=1;it=k;
end

function f=fun2(x)
f=exp(x)+10*x-2;
[xstar,index,it]=bisect('fun2',0,1,0.001);
end

```
>> fun2(1)
Maximum recursion limit of 1000 reached. Use set(0,'RecursionLimit',N) to change the limit. Be aware
that exceeding your available stack space can crash MATLAB and/or your computer.

Error in bisect

[liu1xiang]

应该是循环次数太多导致的存储空间不足。楼主可以增加一个用k来设置迭代跳出的条件。

[Amy_is_growing]

已解决 函数应为 function f=fun2(x) f=exp(x)+10*x-2; end 在窗口执行以下命令 [xstar,index,it]=bisect('fun2',0,1,0.001); 完成