Texas Instruments TI-89 Titanium Short User Manual page 225

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.
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.
4Polar
MATH/Matrix/Vector ops menu
vector
4Polar
Displays
must be of dimension 2 and can be a row or a
column.
Note:
a conversion function. You can use it only at the
end of an entry line, and it does not update
Note: See also 4
complexValue
4Polar
Displays
• Degree angle mode returns (r q).
• Radian angle mode returns r
complexValue
However, an r
angle mode.
Note: You must use the parentheses for an (r q)
polar entry.
polyEval()
MATH/List menu
list1
polyEval(
list1
polyEval(
Interprets the first argument as the coefficient of
a descending-degree polynomial, and returns the
polynomial evaluated for the value of the second
argument.
Appendix A: Functions and Instructions
in polar form [r q]. The vector
vector
is a display-format instruction, not
4Polar
.
Rect
in polar form.
complexVector
can have any complex form.
i q
e
entry causes an error in Degree
) ⇒
expression1 expression
,
) ⇒
list2 expression
,
PlotsOff 1,2,5 ¸
PlotsOff ¸
PlotsOn 2,4,5 ¸
PlotsOn ¸
[1,3.] 4Polar ¸
[x,y] 4Polar ¸
.
ans
In Radian angle mode:
3+4
(4 p/3)4Polar ¸
e i q
.
In Degree angle mode:
3+4
polyEval({a,b,c},x) ¸
polyEval({1,2,3,4},2) ¸
polyEval({1,2,3,4},{2,ë 7})
¸
i 4Polar ¸ e
i
4Polar ¸(5 90ì tanê(3/4))
Done
Done
Done
Done
p
i ( ì tanê(3/4))
ø ø5
2
iøp
e ø4
3
aø xñ +bø x+c
26
{26 ë 262}
219