Notes of Whittaker-Henderson Formula A, [Discussion]

Mr. Valerius’ notes on Whittaker-Henderson Formula A have provided casualty actuaries with an opportunity to improve one of the most powerful tools at their disposal. The problem of examining a series of data, detecting a trend, and projecting that trend is one with which we are all vitally concerned. To fully appreciate the value of his contribution, a brief synopsis of the basic concepts of graduation might be helpfu1.