TI 83
Plus and TI 84 Plus Information
The older TI-83 is not identical.
- Financial Variables
-
N, number of periods
I%, rate of interest per year
P/Y, number of payment periods per year
C/Y, number of compounding periods per year
PMT, payment per period
PV, present value
FV, future value
- Conventions
-
Payments which increase the balance are positive numbers.
Payments which decrease the balance are negative numbers.
Future values are withdrawals, usually entered as negative numbers.
- Floating Decimal
- Press MODE, place the cursor on Float, press ENTER, press CLEAR.
- Financial Mode
- Press APPS, ENTER (for Finance), ENTER (for TVM Solver).
- Clearing Financial Data
- Move the cursor to the appropriate variable and enter zero.
- Beginning Annuities
- Move the cursor to BEGIN, then press ENTER.
- Entering Financial Data
-
Move the cursor to the appropriate variable and enter the value.
When you enter a value for P/Y, the value of C/Y will automatically
change to the same value. Therefore, you do not need to enter a value
for C/Y.
- Computing Values
-
Move the cursor to the appropriate variable and press ALPHA SOLVE. (SOLVE is an additional function of the ENTER key.)
- Example:
- Tom's account begins with $500,
and earns 6% per year, compounded monthly. He deposits an additional
$50 at the end of each month. What will the balance be at the end of
one year?
The variables are:
| N = 12 | I = 6/12 | PMT = 50 increasing | PV = 500 | FV = ??? |
- The keystrokes are:
- APPS ENTER ENTER
12 ENTER
6 ENTER
500 ENTER
50 ENTER
ENTER
12 ENTER
Move the cursor to END, press ENTER
Move the cursor to FV, press ALPHA SOLVE.
The answer is $1,147.62, rounded to the nearest cent. The negative sign
indicates that the amount can be withdrawn from the account.