Appendix A: Functions and Instructions
827
PlotsOff
CATALOG
PlotsOff
[
1
]
[
, 2
]
[
, 3
]
...
[
, 9
]
Turns off the specified plots for graphing. When in
2-graph mode, only affects the active graph.
If no parameters, then turns off all plots.
PlotsOff 1,2,5
¸
Done
PlotsOff
¸
Done
PlotsOn
CATALOG
PlotsOn
[
1
]
[
, 2
]
[
, 3
]
...
[
, 9
]
Turns on the specified plots for graphing. When in
2-graph mode, only affects the active graph.
If you do not include any arguments, turns on all
plots.
PlotsOn 2,4,5
¸
Done
PlotsOn
¸
Done
4
Polar
MATH/Matrix/Vector ops menu
vector
4
Polar
Displays
vector
in polar form [r
o
q
]. The vector must
be of dimension 2 and can be a row or a column.
Note
:
4
Polar
is a display-format instruction, not a
conversion function. You can use it only at the end
of an entry line, and it does not update
ans
.
Note:
See also
4
Rect
.
[1,3.]
4
Polar
¸
[x,y]
4
Polar
¸
complexValue
4
Polar
Displays
complexVector
in polar form.
•
Degree angle mode returns (r
o
q
).
•
Radian angle mode returns r
e
i
q
.
complexValue
can have any complex form. However,
an r
e
i
q
entry causes an error in Degree angle mode.
Note
: You must use the parentheses for an (r
o
q
)
polar entry.
In Radian angle mode:
3+4
i
4
Polar
¸
e
i
ø
(
p
2
ì
tan
ê
(3/4))
ø
5
(4
o
p
/3)
4
Polar
¸
e
i
ø
p
3
ø
4
In Degree angle mode:
3+4
i
4
Polar
¸
(5
o
90
ì
tan
ê
(3/4))
polyEval()
MATH/List menu
polyEval(
list1
,
expression1
)
⇒
expression
polyEval(
list1
,
list2
)
⇒
expression
Interprets the first argument as the coefficient of a
descending-degree polynomial, and returns the
polynomial evaluated for the value of the second
argument.
polyEval({a,b,c},x)
¸
a
ø
x
ñ
+b
ø
x+c
polyEval({1,2,3,4},2)
¸
26
polyEval({1,2,3,4},{2,
ë
7})
¸
{26
ë
262}
PopUp
CATALOG
PopUp
itemList
,
var
Displays a pop-up menu containing the character
strings from
itemList
, waits for you to select an item,
and stores the number of your selection in
var
.
The elements of
itemList
must be character strings:
{
item1String
,
item2String
,
item3String
, ...}
If
var
already exists and has a valid item number,
that item is displayed as the default choice.
itemList
must contain at least one choice.
PopUp
{"1990","1991","1992"},var1
¸
Summary of Contents for Titanium TI-89
Page 9: ...Getting Started 6 TI 89 Titanium keys Ë Ì Í Ê ...
Page 34: ...Getting Started 31 2 or D 2 B u s i n e s s D B D B Press Result ...
Page 43: ...Getting Started 40 3 0 D B D D B D Press Result ...
Page 44: ...Getting Started 41 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Page 58: ...Getting Started 55 Example Set split screen mode to TOP BOTTOM Press Result 3 B D ...
Page 70: ...Getting Started 67 ...
Page 175: ...Operating the Calculator 172 From the Keyboard ...
Page 456: ...Tables 453 ...
Page 527: ...Data Matrix Editor 524 ...
