Here are the "misery index" slides mentioned in
the intro meeting of Tuesday Sep 16. The story
illustrates that multivariable calculus concepts can be useful to visualize
data. The example is a
NYT article by Floyd Norris of September 13, 2008
titled "The return of the misery index".
The animated curve shows the development
of inflation and unemployment in time from
1948 to 2008.
Inflation (red), Unemployment (green) and
the Misery Index (yellow, the sum of Inflation and
Unemployment) as graphs in time from 1948 to 2008.