Texas Instruments TI-84 User Manual
Page 658
Appendix B: Reference Information
655
VARIABLE
You have tried to archive a variable that cannot be
archived or you have tried to unarchive an application
or group.
Examples of variables that cannot be archived include:
•
Real numbers
LRESID, R, T, X, Y
,
Theta
, Statistic
variables under
Vars
,
STATISTICS
menu,
Yvars
,
and the
AppIdList
.
VERSION
You have attempted to receive an incompatible variable
version from another graphing calculator.
WINDOW
RANGE
A problem exists with the window variables.
•
You defined
Xmax
Xmin
or
Ymax
Ymin
.
•
You defined
q
max
q
min
and
q
step
>
0
(or vice
versa).
•
You attempted to define
Tstep=0
.
•
You defined
Tmax
Tmin
and
Tstep
>
0
(or vice
versa).
•
Window variables are too small or too large to graph
correctly. You may have attempted to zoom in or zoom
out to a point that exceeds the TI-84 Plus’s numerical
range.
ZOOM
•
A point or a line, instead of a box, is defined in
ZBox.
•
A
ZOOM
operation returned a math error.
Error Type
Possible Causes and Suggested Remedies