## 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indicates that the amount can be withdrawn from the account.