deletions | additions       diff --git a/section_Code_begin_lstlisting_language__.tex b/section_Code_begin_lstlisting_language__.tex  index 0467c65..b7fa30b 100644  --- a/section_Code_begin_lstlisting_language__.tex  +++ b/section_Code_begin_lstlisting_language__.tex 
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resid = std::fabs(F);  if (error < tol && resid < rtol)  {  n = x/E2; float rn = 1.0f/norm(n); n = rn*n; return iter; }  }   
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}  \end{lstlisting}