Texas Instruments BA-35 Quick Reference Guide - Page 19

Annuity Keys In annuity calculations, the following keys are used to enter or calculate the values listed below. C-Total number of payment periods. I-Percent interest per payment period. K-Present value of a series of payments plus the present value of FV. With a savings account, PV represents an initial deposit (not including the first payment). With a loan, PV represents the loan amount. M-Amount of the regular payment. This value may be positive or negative, depending on the type of problem you are solving (as explained on page 20). L-Future value of a series of payments plus the future value of PV. With a savings account, FV represents the final amount withdrawn. With a loan, FV represents any balloon payment that must be made in addition to the last regular payment. 1 (Computation Key)-Computes the unknown value for annuity problems. § When Begin is not displayed, the 1 key computes the unknown value for ordinary annuities (annuities with end-of-period payments). § When Begin is displayed, the 1 key computes the unknown value for annuities due (annuities with beginning-of-period payments). 19