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Appendix A: Functions and Instructions 539
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 539 of 132
!
(store)
§
key
expression
!
var
list
!
var
matrix
!
var
expression
!
fun_name(parameter1,...)
list
!
fun_name(parameter1,...)
matrix
!
fun_name(parameter1,...)
If variable
var
does not exist, creates
var
and
initializes it to
expression
,
list
, or
matrix
.
If
var
already exists and if it is not locked or
protected, replaces its contents with
expression
,
list
, or
matrix
.
Hint: If you plan to do symbolic
computations using undefined variables,
avoid storing anything into commonly used,
one-letter variables such as a, b, c, x, y, z, etc.
p/4
!
myvar
¸
p
4
2cos(x)
!
Y1(x)
¸
Done
{1,2,3,4}
!
Lst5
¸
{1 2 3 4}
[1,2,3;4,5,6]
!
MatG
¸
[
1 2 3
4 5 6
]
"Hello"
!
str1
¸
"Hello"
¦
(comment)
Program Editor/Control menu
or
TI
-
89:
¥
d
key
TI
-
92 Plus:
2
X
key
¦
[
text
]
¦
processes
text
as a comment line, which
can be used to annotate program
instructions.
¦
can be at the beginning or anywhere in the
line. Everything to the right of
¦
, to the end
of the line, is the comment.
Program segment:
©
:
¦
Get
1
0 points from t
h
e Grap
h
screen
:For i,
1
,
1
0
¦
T
h
is
l
oops
1
0
times
©
0b, 0h
TI
-
89: µ j
[B]
keys TI
-
92 Plus:
µ
B
keys
TI
-
89: µ j
[H]
keys TI
-
92 Plus:
µ
H
keys
0b
binaryNumber
0h
hexadecimalNumber
Denotes a binary or hexadecimal number,
respectively. To enter a binary or hex
number, you must enter the 0b or 0h
prefix regardless of the
Base
mode.
Without a prefix, a number is treated as
decimal (base 10).
Results are displayed according to the
Base
mode.
In Dec base mode:
0b10+0hF+10
¸
27
In Bin base mode:
0b10+0hF+10
¸
0b11011
In Hex base mode:
0b10+0hF+10
¸
0h1B