Model and interpret a periodic cash-flow recurrence
A balance is tracked for the community reserve fund at the end of each half-year
\(V_n\) is the balance, in dollars, after \(n\) half-years. The initial balance \(V_0\) is recorded before the first period's interest
The initial balance is $21,000. The nominal annual interest rate is 10%, compounded half-yearly
A regular addition of $750 is made at the end of each half-year
Interest is applied first. The regular cash flow is made at the end of each half-year; payments per year and compounding periods per year are both 2
\[V_{n+1}=R V_n+sD\]