Sequence Graphing 6–9
82EAB9~1.DOC TI-83 international English Bob Fedorisko Revised: 10/28/05 9:28 AM Printed: 10/28/05 9:28
M Page 9 of 16
The free-moving cursor in Seq graphing works the same as in
Func graphing. In RectGC format, moving the cursor updates
the values of
X and Y; if CoordOn format is selected, X and Y
are displayed. In PolarGC format, X, Y, R, and q are updated; if
CoordOn format is selected, R and q are displayed.
The axes format setting affects
TRACE.
When Time, uv, vw, or uw axes format is selected, TRACE
moves the cursor along the sequence one PlotStep increment at
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
PlotStart,
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 Web format, the trail of the 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 initial value of
the first selected function.
Tip: To move the cursor to a specified n during a trace, enter a value
for n, and press Í. For example, to quickly return the cursor to
the beginning of the sequence, paste nMin to the n= prompt and
press Í.
To move the trace cursor to any valid n value on the current
function, enter the number. When you enter the first digit, an
n
=
prompt and the number you entered are displayed in the
bottom-left corner of the screen. You can enter an expression at
the
n = prompt. The value must be valid for the current viewing
window. When you have completed the entry, press Í to
move the cursor.
Exploring Sequence Graphs
Free-Moving
Cursor
TRACE
Moving the Trace
Cursor to Any
Valid n Value
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