Appendix A: Functions and Instructions
376
Text(
row
,
column
,
text1
,
text2
,
...
,
text n
)
Writes
text
on graph beginning at pixel (
row
,
column
), where
0
row
57 and 0
column
94.
y <
DRAW
0:Text(
Then
See
If:Then
Time
Sets sequence graphs to plot with respect to time.
†
y .
Time
timeCnv(
seconds
)
Converts seconds to units of time that can be more easily
understood for evaluation. The list is in
{days,hours,minutes,seconds}
format.
y N
timeCnv
TInterval
[
listname
,
freqlist
,
confidence level
]
(Data list input)
Computes a
t
confidence interval.
†
…
TESTS
8:TInterval
TInterval
v
,
Sx
,
n
[
,
confidence level
]
(Summary stats input)
Computes a
t
confidence interval.
†
…
TESTS
8:TInterval
tpdf(
x
,
df
)
Computes the probability density function (pdf) for the
Student-
t
distribution at a specified
x
value with specified
degrees of freedom
df
.
y =
DISTR
5:tpdf(
Trace
Displays the graph and enters
TRACE
mode.
r
T-Test
m
0
[
,
listname
,
freqlist
,
alternative
,
drawflag
]
(Data list input)
Performs a
t
test with frequency
freqlist
.
alternative
=
L
1
is
<
;
alternative
=
0
is
ƒ
;
alternative
=
1
is
>
.
drawflag
=
1
draws
results;
drawflag
=
0
calculates results.
†
…
TESTS
2:T-Test
T-Test
m
0
,
v
,
Sx
,
n
[
,
alternative
,
drawflag
]
(Summary stats input)
Performs a
t
test with frequency
freqlist
.
alternative
=
L
1
is < ;
alternative
=
0
is
ă
;
alternative
=
1
is >.
drawflag
=
1
draws
results;
drawflag
=
0
calculates results.
†
…
TESTS
2:T-Test
tvm_FV
[
(
Ú
,
æ
,
PV
,
PMT
,
P/Y
,
C/Y
)
]
Computes the future value.
Œ
1:Finance
CALC
6:tvm_FV
tvm_
æ
[
(
Ú
,
PV
,
PMT
,
FV
,
P/Y
,
C/Y
)
]
Computes the annual interest rate.
Œ
1:Finance
CALC
3:tvm_
æ
tvm_
Ú
[
(
æ
,
PV
,
PMT
,
FV
,
P/Y
,
C/Y
)
]
Computes the number of payment periods.
Œ
1:Finance
CALC
5:tvm_
Ú
tvm_Pmt
[
(
Ú
,
æ
,
PV
,
FV
,
P/Y
,
C/Y
)
]
Computes the amount of each payment.
Œ
1:Finance
CALC
2:tvm_Pmt
tvm_PV
[
(
Ú
,
æ
,
PMT
,
FV
,
P/Y
,
C/Y
)
]
Computes the present value.
Œ
1:Finance
CALC
4:tvm_PV
Function or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item