af function

Present Value of An Annuity

Calculates the present value of an annuity.

af(l = 0, n, i)

Arguments

• l: 0 for annuity due or 1 for annuity immediate.
• n: A numeric value. The number of payments.
• i: A numeric value. The interest rate.

Examples

af(0,10,0.03)
af(1,15,0.05)