Operation Manual
6-6 Sequence Graphing
8206SEQ.DOC TI-82, Chapter 6, English Bob Fedorisko Revised: 02/09/01 12:49 PM Printed: 02/09/01
12:50 PM Page 6 of 6
Exploring a Sequence Graph
As in Function graphing, three tools are available for exploring a graph: using the
free-moving cursor, tracing a function, and zooming.
Free-Moving Cursor
The free-moving cursor works in
Seq
graphing just as it does in
Func
graphing. In
RectGC
FORMAT
, moving the cursor updates and displays (if
FORMAT
is
CoordOn
) the values of
X
and
Y
. (In
PolarGC Web
FORMAT
,
X
,
Y
,
R
, and
q
are updated, and
R
and
q
are displayed.)
TRACE
In
Time
FORMAT
, when you begin a trace, the cursor is on the first selected
function at
n
Min
.
TRACE
displays (if
FORMAT
is
CoordOn
) the values of
U
n
or
V
n
and
n
.
~
moves the cursor forward along the function one
n
at a
time. It updates
U
n
,
n
,
X
, and
Y
.
In
Web
FORMAT
, the trail left by the
TRACE
cursor helps identify points
with attracting and repelling behavior in the sequence. When you begin a
trace, the cursor is on the
X
axis at the value of
U
n
start
or
V
n
start
(the first
selected function).
TRACE
displays and updates (if
FORMAT
is
CoordOn
)
the values of
n
,
X
, and
Y
(or
R
and
q
).
X
and
Y
(or
R
and
q
) are calculated
from
n
.
~
moves the cursor between the function and the graph of
Y=X
,
displaying both for
n
before incrementing
n
.
If the cursor moves off the top or bottom of the screen, the coordinate
values at the bottom of the screen continue to change appropriately.
In
Seq
,
|
or
y
|
moves the
TRACE
cursor to
n
=
n
Min
.
QuickZoom and panning are available in
Seq
graphing.
ZOOM
ZOOM
operations works in
Seq
graphing as they do in
Func
graphing. Only
the
X
(
Xmin
,
Xmax
, and
Xscl
) and
Y
(
Ymin
,
Ymax
, and
Yscl
)
WINDOW
variables are affected.
U
n
start
,
V
n
start
,
n
Start
,
n
Min
, and
n
Max
are not
affected, except when you select
ZStandard
(
U
n
Start=0
,
V
n
Start=0
,
n
Start=0
,
n
Min=0
and
n
Max=10
). The
ZOOM MEMORY
variables in
Seq
graphing include
ZU
n
Start
,
ZV
n
Start
,
Z
n
Start
,
Z
n
Min
, and
Z
n
Max
.
CALC
value
is the only
CALC
operation available in
Seq
graphing. It is not
available in
Web
FORMAT
.