\section{Nonlinear Systems} \label{ch:nonlinear_systems} \subsection{Equilibrium Points} \label{sec:ch14_equilibrium} % Content goes here \subsection{Jacobian Linearization} \label{sec:ch14_jacobian} % Content goes here \subsection{Trace-Determinant Classification} \label{sec:ch14_trace_determinant} % Content goes here \subsection{Hartman--Grobman Theorem} \label{sec:ch14_hartman_grobman} % Content goes here \subsection{Limit Cycles} \label{sec:ch14_limit_cycles} % Content goes here \subsection{Lotka--Volterra Predator-Prey} \label{sec:ch14_lotka_volterra} % Content goes here \subsection{Summary} \label{sec:ch14_summary} % Summary table at end of chapter \begin{table}[htbp] \centering \caption{Chapter Summary} \label{tab:ch14_summary} \begin{tabular}{l l} \toprule \textbf{Concept} & \textbf{Key Formula/Method} \\ \midrule TBD & TBD \\ \bottomrule \end{tabular} \end{table}