173 Riemann sums in the TI-83, 84, and 89 calculators

So sorry: I am unable to keep my promise to put enhanced instructions here this evening. While we are waiting, I refer you, if you please, to the TI-83 manual, which has a chapter on programming, and note that in the TI-89 one can do almost the same thing we did in class by going to the Apps key. Will have it all here ASAP.