[SOLVED] matlab errors,defing vaiables

[fareen]

hi
im having a lot of troble in writing matlab code
specially in defing a function

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Code C - [expand]
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fu=function define in another function file.
function [bs] = bisection(fu, xl,xu,tol,n)
 
 
error=0;
t=0;
while t <= n | error < tol
    bs= xl+ (xu-xl)/2;
   
    if (fu(xl)*fu(bs))<0
        bs=xu;
    elseif (fu(xu)*fu(bs))<0
        bs=xl;
    else (feval(fu,xl)*feval(fu,bs))==0;
        break
    end
  
        error = (bs(t-1)-bs(t))/bs(t);
        if error < tol
            break
        end
        t=t+1;
   
end
 
        
end
function f=fu(x)
x=0:10;
 
f=x.^3+4*x-10;
end

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can any body help??

 

[kemiyun]

I would suggest that you define your functions in an another .m file, and add that .m file to your workbench. In Mathworks site:
https://www.mathworks.com/help/techdoc/ref/function.html
Says that: "The function declaration must be the first executable line of any MATLAB function."