Variables - Texas Instruments TI-83 Manual Book

Variables

User Variables
System Variables
The TI.83 uses the variables listed below in various ways.
Some variables are restricted to specific data types.
The variables through
A
complex numbers. You may store to them. The TI.83 can
update , , , , and
q
X Y R
to avoid using these variables to store nongraphing data.
The variables (list names)
lists; you cannot store another type of data to them.
The variables (matrix names)
to matrices; you cannot store another type of data to them.
The variables
Pic1
pictures; you cannot store another type of data to them.
The variables
GDB1
to graph databases; you cannot store another type of data
to them.
The variables
Str1
strings; you cannot store another type of data to them.
You can store any string of characters, functions,
instructions, or variables to the functions
and ), n / n (
0 X Y 1
T T
and directly or through the
w( n )
string is determined when the function is evaluated.
The variables below must be real numbers. You may store
to them. Since the TI.83 can update some of them, as the
result of a , for example, you may want to avoid
ZOOM
using these variables to store nongraphing data.
, ,
Xmin Xmax Xscl
other window variables.
, ,
ZXmin ZXmax
other variables.
ZOOM
The variables below are reserved for use by the TI.83. You
cannot store to them.
, v , , sx , ,
n Sx minX
2
Ç
, , , , c , , v1
y1 z t F
statistical variables.
Tables and Reference Information A-49
and q are defined as real or
Z
during graphing, so you may want
T
through
L
1
through
[A]
through and
Pic9
through and
GDB9
through and
Str9
through ), n ( through
6 r 1
editor. The validity of the
Y=
, @X , ,
XFact Tstep
, ,
ZXscl ZTstep ZPlotStart
2
, Gy , Gy , Gxy
maxX
, , , ,
Sx1 n1 lower upper
are restricted to
L
6
are restricted
[J]
are restricted to
Pic0
are restricted
GDB0
are restricted to
Str0
n, ( through
Y 1
), ,
6 u( n ) v( n )
, , , and
PlotStart n Min
, , and
Zu( n Min)
, , , , ,
a b c RegEQ x
1
2 2
, , and other
r R
,
9
,
,
x
2,