I like the MATLAB meshc command – it gives you a 3D plot and under it you see the contour plot.
The picture was generated by typing
figure
[X,Y] = meshgrid(-3:.125:3);
Z = -3*Y./(1 + X.^2 + Y.^2));
meshc(Z);
and then clicking the plot and making the lines thicker, fixing the units on the axes and inserting a title.
Those last things could have been done better, but it worked.
Hope that works for all those Texans that have never tried to hike with a topo map in hand!
Somebody cared enough to come to office hours to ask for solutions to the old exam, so I went ahead and posted those.
(Look in tentative schedule in the syllabus at the date of exam #1)
If you want me to do something, there is no harm in asking, worst thing I can say is “no”.
I added an old exam # 1 to the calendar for each of the three classes. Hopefully this gives you some idea what an exam might look like. You will not get the same exam!
The old exams were promised before – if I promise to do somehting and forget, feel free to remind me.