Exploring Sequence Graphs - Texas Instruments TI-82 STATS Manual Book

Exploring Sequence Graphs

Free-Moving
Cursor
TRACE
Moving the Trace
Cursor to Any
Valid n Value
The free-moving cursor in
graphing. In
Func RectGC
the values of and
X
are displayed. In
PolarGC
format is selected,
CoordOn
The axes format setting affects
When , ,
Time uv vw
moves the cursor along the sequence one
a time. To move five plotted points at once, press y ~ or y
|.
When you begin a trace, the trace cursor is on the first
selected sequence at the term number specified by
even if it is outside the viewing window.
Quick Zoom applies to all directions. To center the viewing
window on the current cursor location after you have moved
the trace cursor, press Í. The trace cursor returns to
.
nMin
In format, the trail of the cursor helps identify points with
Web
attracting and repelling behavior in the sequence. When you
begin a trace, the cursor is on the x-axis at the initial value of
the first selected function.
Tip: To move the cursor to a specified
, and press Í. For example, to quickly return the cursor to
n
for
the beginning of the sequence, paste
press Í.
To move the trace cursor to any valid
function, enter the number. When you enter the first digit, an
prompt and the number you entered are displayed in the
=
bottom-left corner of the screen. You can enter an expression at
the prompt. The value must be valid for the current viewing
n =
window. When you have completed the entry, press Í to
move the cursor.
graphing works the same as in
Seq
format, moving the cursor updates
; if format is selected,
Y CoordOn
format, , ,
X Y
and are displayed.
R
q
.
TRACE
, or axes format is selected,
uw
n
during a trace, enter a value
nMin
n
Sequence Graphing 6–9
and
X
, and are updated; if
R
q
TRACE
increment at
PlotStep
PlotStart
n=
to the prompt and
value on the current
Y
,
n