To prepare for tomorrow ...

By now, most of you have been working on Math3 problems for a hour and a half, and have probably had enough.  So my suggestion to prepare for tomorrow, will be the following: 

• From last year's lecture 2 notes, read pages 4--6: the current-value formulation. And the phase diagram. 
  I am going to cover that first, to be sure we get it done.

Then I will say something about sensitivity: page 3 the same note. You might read that example too. 

When that is done ... I'll pick another example; possibly from note #3, possibly from the old curriculum note. And then there is not much left I guess.