i have problem in bisection method.

Question

Nugraha Septiawisal 2021-3-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/774802-i-have-problem-in-bisection-method

回答： Steven Lord 2021-3-16

i'm having a problem while using "inline" for bisection, here are my script

function c=bisection(f, a, b, maxit,tol)
if nargin < 5, tol=1e-4; end
if nargin < 4, maxit=100; end
if f(a)*f(b)>0
    c='failure';
    return
end
disp('    n     a      b      c     (b-a)/2')
for i=1:maxit
    c=(a+b)/2;
    if f(c)==0
        return
    end
    fprintf('%d \t %d \n', i,    a,     b,     c,    (b-a)/2)
    if (b-a)/2 < tol
        return
    end
    if f(b)*f(c)>0
        b=c;
    else a=c;
    end
end
c='failure';