Most estimated cash flow series do not fit exactly the series for which the
factors and equations in Chapter 2 were developed. Therefore, it is necessary
to combine the equations. For a given sequence of cash flows, there are
usually several correct ways to determine the equivalent present worth P,
future worth F, or annual worth A. This chapter explains how to combine the
engineering economy factors to address more complex situations involving
shifted uniform series and gradient series. Spreadsheet functions are used to
speedup the computations.
