Texas Instruments TI-83 PLUS - Manual (Page 457)

TI-83 Plus Applications 454
Calculating Amortization
Calculating an Amortization Schedule
Use the amortization functions (menu items 9 , 0 , and A ) to calculate
balance, sum of principal, and sum of interest for an amortization
schedule.
bal(
bal( computes the balance for an amortization schedule using stored
values for æ , PV , and PMT . npmt is the number of the payment at which
you want to calculate a balance. It must be a positive integer < 10,000.
roundvalue specifies the internal precision the calculator uses to calculate
the balance; if you do not specify roundvalue , then the TI-83 Plus uses the
current Float / Fix decimal-mode setting.
bal( npmt [ , roundvalue ] )