Appendix A: Functions and Instructions
369
Prompt
variableA
[
,
variableB
,
...
,
variable n
]
Prompts for value for
variableA
, then
variableB
, and so on. †
I/O
2:Prompt
1-PropZInt(
x
,
n
[
,
confidence level
]
)
Computes a one-proportion
z
confidence interval.
†
…
TESTS
A:1-PropZInt(
2-PropZInt(
x1
,
n1
,
x2
,
n2
[
,
confidence level
]
)
Computes a two-proportion
z
confidence interval.
†
…
TESTS
B:2-PropZInt(
1-PropZTest(
p0
,
x
,
n
[
,
alternative
,
drawflag
]
)
Computes a one-proportion
z
test.
alternative
=
L
1
is <;
alternative
=
0
is
ƒ
;
alternative
=
1
is >.
drawflag
=
1
draws
results;
drawflag
=
0
calculates results.
†
…
TESTS
5:1-PropZTest(
2-PropZTest(
x1
,
n1
,
x2
,
n2
[
,
alternative
,
drawflag
]
)
Computes a two-proportion
z
test.
alternative
=
L
1
is <;
alternative
=
0
is
ƒ
;
alternative
=
1
is >.
drawflag
=
1
draws
results;
drawflag
=
0
calculates results.
†
…
TESTS
6:2-PropZTest(
Pt-Change(
x
,
y
)
Reverses a point at (
x
,
y
).
y <
POINTS
3:Pt-Change(
Pt-Off(
x
,
y
[
,
mark
]
)
Erases a point at (
x
,
y
) using
mark
.
y <
POINTS
2:Pt-Off(
Pt-On(
x
,
y
[
,
mark
]
)
Draws a point at (
x
,
y
) using
mark
.
y <
POINTS
1:Pt-On(
PwrReg
[
Xlistname
,
Ylistname
,
freqlist
,
regequ
]
Fits a power regression model to
Xlistname
and
Ylistname
with frequency
freqlist
, and stores the regression equation
to
regequ
.
…
CALC
A:PwrReg
Pxl-Change(
row
,
column
)
Reverses pixel at (
row
,
column
); 0
row
62 and
0
column
94.
y <
POINTS
6:Pxl-Change(
Pxl-Off(
row
,
column
)
Erases pixel at (
row
,
column
); 0
row
62 and
0
column
94.
y <
POINTS
5:Pxl-Off(
Pxl-On(
row
,
column
)
Draws pixel at (
row
,
column
); 0
row
62 and
0
column
94.
y <
POINTS
4:Pxl-On(
pxl-Test(
row
,
column
)
Returns 1 if pixel (
row
,
column
) is on, 0 if it is off;
0
row
62 and 0
column
94.
y <
POINTS
7:pxl-Test(
P
4
Rx(
r
,
q
)
Returns
X
, given polar coordinates
r
and
q
or a list of polar
coordinates.
y ;
ANGLE
7:P
4
Rx(
Function or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item
