Texas Instruments -84 Plus, Руководство пользователя

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Chapter 14: Applications 401
2. Press
Î Œ Í 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 \
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
†
Œ Í
9
„ ¤
to define
Y1T
as
bal(T)
.
6. Press
p
to display the window variables. Enter the
values below.
Tmin=0 Xmin=0 Ymin=0
Tmax=360 Xmax=360 Ymax=125000
Tstep=12 Xscl=50 Yscl=10000
7. Press
r
to draw the graph and activate the trace
cursor. Press
~
and
|
to explore the graph of the
outstanding balance over time. Press a number and
then press
Í
to view the balance at a specific
time T.