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\subsection*{$\checkmark$ الگوریتم روش وتری}
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\begin{enumerate}
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\item \verb"Input the values of"  $x_0, x_1, \epsilon$ \verb"and the function" $f$.
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\item  $n:=1$
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\item \verb"While" $|f(x_n)|>\epsilon$ \verb"do"
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\item            \qquad $ x_{n+1}=x_n-\dfrac{x_n-x_{n-1}}{f(x_n)-f(x_{n-1})}f(x_n)$
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\item    \qquad $n=n+1$
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\item \verb"Endwhile"
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\item \verb"Return" $f(x_n)$ \verb" the approximation of root." 
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