update practice exams

diff --git a/methods/methods-collated.tex b/methods/methods-collated.tex
index b7accd12f1a571031926ac971b9abe565108ed05..c4d21f10e356277e211572b0c50915794d520009 100644 (file)
--- a/methods/methods-collated.tex
+++ b/methods/methods-collated.tex
@@ -216,6 +216,22 @@ For \(x^n\), parity of \(n \equiv\) parity of function
       \textbf{Open circle:} point included\\
       \textbf{Closed circle:} point not included
 
+\begin{cas}
+  Define piecewise functions: \\
+  \-\hspace{1em}Math3 \(\rightarrow\)
+  \begin{tikzpicture}%
+    \draw rectangle (0.5,0.5); 
+    \node at (0.08,0.25) {\(\{\)};
+    \filldraw [black] (0.15, 0.4) rectangle(0.25, 0.3);
+    \draw (0.35, 0.4) rectangle(0.45, 0.3);
+    \node [font=\footnotesize] at (0.3,0.3) {\verb;,;};
+    \draw (0.15, 0.2) rectangle(0.25, 0.1);
+    \node [font=\footnotesize] at (0.3,0.1) {\verb;,;};
+    \draw (0.35, 0.2) rectangle(0.45, 0.1);
+  \end{tikzpicture}
+  % TODO: finish this section
+\end{cas}
+
       \subsection*{Operations on functions}
 
       For \(f \pm g\) and \(f \times g\):