PWF
(Present Worth Function) is an economic function that
provides the present worth of a series of N future payments which inflate at rate
Interest per period.
The
format of the function is
PWF(N, Interest,
Discount)
where
N is the number of periods (e.g., years)
considered in the economic analysis.
Interest is the interest rate (expressed as a fraction) per period.
Discount is the market discount rate
(expressed as a fraction) per period.
PWF
is an example of an EES external function written as a dynamic link library
file. External functions can be written
in C++,
See the on-line help for details