Texas Instruments TI-89 - Page 469

452 Appendix A: Functions and Instructions
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 452 of 132
GetCalc
CATALOG
GetCalc
var
Retrieves a value from the link port and
stores it in variable
var
. This is for unit-to-unit
linking.
Note: To get a variable to the link port from
another unit, use
2°
on the other
unit to select and send a variable, or do a
SendCalc
on the other unit.
Program segment:
©
:Disp "Press Enter w
h
en rea
d
y"
:Pause
:GetCa
l
c L
1
:Disp "List L
1
receive
d
"
©
getConfg()
CATALOG
getConfg()
⇒
ListPairs
Returns a list of calculator attributes. The
attribute name is listed first, followed by its
value.
TI-89:
getConfg()
¸
{
"Pro
d
uct Name" "
Ad
vance
d
Mat
h
ematics Software"
"Version" "2.00, 09
/
25
/1
999"
"Pro
d
uct ID" "03-
1
-4-68"
"ID
#
" "0
1
0
1
2 34567
A
BCD"
"Cert. Rev.
#
" 0
"Screen Wi
d
t
h
"
1
60
"Screen Heig
h
t"
1
00
"Win
d
ow Wi
d
t
h
"
1
60
"Win
d
ow Heig
h
t" 67
"R
A
M Size" 262
1
32
"Free R
A
M"
1
97
1
78
"
A
rc
h
ive Size" 655360
"Free
A
rc
h
ive" 655340
}
TI-92 Plus:
getConfg()
¸
{
"Pro
d
uct Name" "
Ad
vance
d
Mat
h
ematics Software"
"Version" "2.00, 09
/
25
/1
999"
"Pro
d
uct ID" "0
1
-
1
-4-80"
"ID
#
" "0
1
0
1
2 34567
A
BCD"
"Cert. Rev.
#
" 0
"Screen Wi
d
t
h
" 240
"Screen Heig
h
t"
1
20
"Win
d
ow Wi
d
t
h
" 240
"Win
d
ow Heig
h
t" 9
1
"R
A
M Size" 262
1
44
"Free R
A
M"
1
92988
"
A
rc
h
ive Size" 720896
"Free
A
rc
h
ive" 720874
}
Note: Your screen may display different
attribute values. The
Cert. Rev. #
attribute
appears only if you have purchased and
installed additional software into the
calculator.
getDenom
()
MATH/Algebra/Extract menu
getDenom(
expression1
)
⇒
expression
Transforms
expression1
into one having a
reduced common denominator, and then
returns its denominator.
getDenom((x+2)/(y
ì
3))
¸
y
ì
3
getDenom(2/7)
¸
7
getDenom(1/x+(y^2+y)/y^2)
¸
x
ø
y