checklist not ok; 1 short answer question and 2 long answer questions
need to be added.
Creating a linear array:\\
{\ex \lstinline| x = linspace(0, 2*pi, 50)|}
Plotting two variables:\\
{\ex \lstinline| plot(x, sin(x))|}
Plotting two lists of equal length x, y:\\
{\ex \lstinline| plot(x, y)|}