\documentclass[12pt]{report} 
\renewcommand{\today}{November 18, 1996}
% \ilf is inline formula in displaystyle
\pagestyle{empty}
\newcommand{\ilf}[1]{$\displaystyle #1 $}
\begin{document}
\noindent{\bf Math 3226
\hfill 
{\Large Off Line Springs}
\hfill 
Laboratory  D}\bigskip\\
{\em Work Laboratory 4.3 in our textbook ``Differential Equations" by Blanchard, Devaney and Hall.}

\special{src: 14 LAB5D.TEX} %Inserted by TeXtelmExtel

\noindent{\bf Remark.} There are  a couple of minus signs missing in the equations at the bottom of page 409! The correct equation is 
\begin{eqnarray*}
m\frac{d^2y}{dt^2}&=&-k_s \left(\sqrt{y^2+a^2}-L\right)\frac{y}{\sqrt{y^2+a^2}}\\
&=&-k_s  y\left(1-\frac{L}{\sqrt{y^2+a^2}}\right)
\end{eqnarray*}

\special{src: 22 LAB5D.TEX} %Inserted by TeXtelmExtel


\special{src: 25 LAB5D.TEX} %Inserted by TeXtelmExtel


\special{src: 28 LAB5D.TEX} %Inserted by TeXtelmExtel


\special{src: 31 LAB5D.TEX} %Inserted by TeXtelmExtel

\end{document}