14-10 Financial Functions
8314FINA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:50 PM Printed: 02/19/01 1:38 PM
Page 10 of 14
You want to buy a home with a 30-year mortgage at 8
percent APR. Monthly payments are 800. Calculate the
outstanding loan balance after each payment and display
the results in a graph and in the table.
1. Press z. Press † ~ ~ ~ Í to set the
fixed-decimal mode setting to 2. Press † † ~ Í to
select Par graphing mode.
2. Press y [FINANCE] Í to display the TVM Solver.
3. Press 360 to enter number of payments. Press † 8 to
enter the interest rate. Press † † Ì 800 to enter the
payment amount. Press † 0 to enter the future value of
the mortgage. Press † 12 to enter the payments per
year, which also sets the compounding periods per year
to 12. Press † † Í to select PMT:END.
4. Press } } } } } to place the cursor on the PV prompt.
Press ƒ [SOLVE] to solve for the present value.
5. Press o to display the parametric Y= editor. Turn off all
stat plots. Press „ to define X1T as T. Press † y
[FINANCE] 9 „¤ to define Y1T as bal(T).
Amortization
Example:
Calculating an
Outstanding
Loan Balance