Texas Instruments TI-83 Guide Book

17-20 Applications
8317APPS.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:00 PM Printed: 02/19/01 1:39 PM
Page 20 of 20
8. Press
†
to move the cursor onto the function for
interest defined by
X
2T
and Y
2T
. Enter 240.
The graph shows that for the 240th payment (X=240),
441.97 of the 800 payment is interest (
Y=441.97).
9. Press
y
[
QUIT
]
y
[
FINANCE
] 9 to paste 9:bal( to the
home screen. Check the figures from the graph.
At which monthly payment will the principal allocation
surpass the interest allocation?

Texas Instruments TI-83 Specifications

General

Programming	TI-BASIC
Processor	Zilog Z80, 6 MHz
Weight	7.4 oz (210 g)
Display	96x64 pixels, monochrome LCD
Power Source	4 AAA batteries, 1 CR1616 or CR1620 for backup
Memory	32 KB RAM
Connectivity	2.5mm I/O port for linking with other TI calculators