54 Chapter 2: Operating the Calculator
02OPER.DOC TI
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89/TI
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92Plus: O
p
eratingthe TI
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89/TI
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92Plus (English) SusanGullord Revised:02/23/01 1:06 PM Printed:02/23/01 2:11 PM Page54 of 44
Indicator Meaning
Exact/
A
pprox
Mode
Shows how answers are calculated and displayed.
Refer to page 29. To change the Exact/Approx mode,
use the 3key.
AUTO Auto
EXACT Exact
APPROX Approximate
Graph
Number
If the screen is split to show two independent graphs,
this indicates which graph is active — GR1 or GR2.
(Displays G#1 or G#2 on the TI-92 Plus.)
Graph
Mode
Indicates the type of graphs that can be plotted. To
change the Graph mode, use the 3key.
FUNC y(x) functions
PAR x(t) and y(t) parametric equations
POL r(q) polar equations
SEQ u(n) sequences
3D z(x,y) 3D equations
DE y'(t) differential equations
Battery Displayed only when the batteries are getting low. If
BATT is shown with a black background, change the
batteries as soon as possible.
History Pairs,
Busy/Pause,
A
rchived
The information shown in this part of the status line
depends on the application you are using.
23/30 Displayed on the Home screen to show the number
of entry/answer pairs in the history area. Refer to
page 24.
BUSY A calculation or graph is in progress.
PAUSE You paused a graph or program.
Œ
The variable opened in the current editor
(Data/Matrix Editor, Program Editor, or Text Editor)
is locked or archived and cannot be modified.
Status Line
(continued)