Compute the present value of an annuity from cash flow PMT, rate r and periods n using PV = PMT·[1 − (1+r)^(−n)]/r.
输入每期现金流 PMT、每期利率 r 与期数 n,求年金现值。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Ordinary annuity PV | PV = PMT*[1-(1+r)^(-n)]/r | Time Value of Money (TVM) |
| Annuity due PV | PV_due = PV*(1+r) | TVM variant |
| Parameters | PMT, r per period, n periods | Standard notation |